1.92.0: pytest fails in 6 units

### Description
Looks like pytest fails in 6 units.

### Steps to reproduce
I'm packaging your module as an rpm package so I'm using the typical PEP517 based build, install and test cycle used on building packages from non-root account.
- `python3 -sBm build -w --no-isolation`
- because I'm calling `build` with `--no-isolation` I'm using during all processes only locally installed modules
- install .whl file in using `installer` module
- run pytest with $PYTHONPATH pointing to sitearch and sitelib inside
- build is performed in env which is *`cut off from access to the public network`* (pytest is executed with `-m "not network"`)

### Observed result

Here is pytest output:

```console
+ PYTHONPATH=/home/tkloczko/rpmbuild/BUILDROOT/python-aws-sam-translator-1.92.0-2.fc37.x86_64/usr/lib64/python3.10/site-packages:/home/tkloczko/rpmbuild/BUILDROOT/python-aws-sam-translator-1.92.0-2.fc37.x86_64/usr/lib/python3.10/site-packages
+ /usr/bin/pytest -ra -m 'not network' --ignore tests/bin/test_public_interface.py
==================================================================================== test session starts ====================================================================================
platform linux -- Python 3.10.14, pytest-8.2.2, pluggy-1.5.0
rootdir: /home/tkloczko/rpmbuild/BUILD/serverless-application-model-1.92.0
configfile: pytest.ini
testpaths: tests
collected 3984 items

tests/feature_toggle/test_dialup.py .............. [ 0%]
tests/feature_toggle/test_feature_toggle.py ..................................... [ 1%]
tests/internal/test_deprecation_control.py . [ 1%]
tests/intrinsics/test_actions.py ............................................................................ [ 3%]
tests/intrinsics/test_resolver.py ..................... [ 3%]
tests/intrinsics/test_resource_refs.py ............ [ 4%]
tests/metrics/test_method_decorator.py ......... [ 4%]
tests/metrics/test_metrics.py ................. [ 4%]
tests/model/api/test_api_generator.py .... [ 4%]
tests/model/api/test_http_api_generator.py ............................ [ 5%]
tests/model/connector_profiles/test_profile.py ............. [ 5%]
tests/model/eventsources/test_api_event_source.py ...... [ 5%]
tests/model/eventsources/test_cloudwatch_event_source.py .. [ 6%]
tests/model/eventsources/test_cloudwatchlogs_event_source.py .... [ 6%]
tests/model/eventsources/test_documentdb_event_source.py ........... [ 6%]
tests/model/eventsources/test_eventbridge_rule_source.py ................... [ 6%]
tests/model/eventsources/test_mq_event_source.py ....... [ 7%]
tests/model/eventsources/test_msk_event_source.py ... [ 7%]
tests/model/eventsources/test_schedule_event_source.py ................ [ 7%]
tests/model/eventsources/test_schedulev2_event_source.py ........................... [ 8%]
tests/model/eventsources/test_self_managed_kafka_event_source.py ................... [ 8%]
tests/model/eventsources/test_sns_event_source.py ........ [ 8%]
tests/model/stepfunctions/test_api_event.py ...... [ 9%]
tests/model/stepfunctions/test_cloudwatchevents_event.py ............ [ 9%]
tests/model/stepfunctions/test_eventbridge_rule_source.py .... [ 9%]
tests/model/stepfunctions/test_schedule_event.py ................... [ 9%]
tests/model/stepfunctions/test_state_machine_generator.py ............... [ 10%]
tests/model/tags/test_resource_tagging.py ... [ 10%]
tests/model/test_api.py ............. [ 10%]
tests/model/test_api_v2.py ................. [ 11%]
tests/model/test_exceptions.py ...... [ 11%]
tests/model/test_resource.py .. [ 11%]
tests/model/test_resource_policies.py ...................................... [ 12%]
tests/model/test_resource_validator.py ...... [ 12%]
tests/model/test_sam_resources.py ................................................ [ 13%]
tests/openapi/test_openapi.py .............................................. [ 14%]
tests/parser/test_parser.py ..... [ 14%]
tests/plugins/api/test_default_definition_body_plugin.py ... [ 14%]
tests/plugins/api/test_implicit_api_plugin.py ............................................. [ 16%]
tests/plugins/application/test_serverless_app_plugin.py ..............FFFF......F [ 16%]
tests/plugins/globals/test_globals.py ............................................ [ 17%]
tests/plugins/globals/test_globals_plugin.py ... [ 17%]
tests/plugins/policies/test_policy_templates_plugin.py ........... [ 18%]
tests/policy_template_processor/test_processor.py .................. [ 18%]
tests/policy_template_processor/test_schema.py ............... [ 19%]
tests/policy_template_processor/test_template.py ............... [ 19%]
tests/schema/test_validate_schema.py ................................................................................................................................................ [ 23%]
..................................................................................................................................................................................... [ 27%]
..................................................................................................................................................................................... [ 32%]
.......................................................................................................................... [ 35%]
tests/sdk/test_parameter.py ............ [ 35%]
tests/sdk/test_resource.py ....... [ 35%]
tests/sdk/test_template.py ............ [ 35%]
tests/swagger/test_swagger.py ........................................................................................................ [ 38%]
tests/test_import.py ............................................................................................................................................................ [ 42%]
tests/test_intrinsics.py ............................ [ 43%]
tests/test_model.py ............................. [ 43%]
tests/test_plugins.py .......................... [ 44%]
tests/test_types.py ............ [ 44%]
tests/translator/model/preferences/test_deployment_preference.py ........ [ 45%]
tests/translator/model/preferences/test_deployment_preference_collection.py .......................... [ 45%]
tests/translator/model/test_update_policy.py .. [ 45%]
tests/translator/test_api_resource.py .... [ 45%]
tests/translator/test_arn_generator.py ............ [ 46%]
tests/translator/test_function_resources.py ............................... [ 46%]
tests/translator/test_logical_id_generator.py ................. [ 47%]
tests/translator/test_managed_policies_translator.py . [ 47%]
tests/translator/test_resource_level_attributes.py ........................................................................................................................... [ 50%]
tests/translator/test_translator.py ................................................................................................................................................. [ 54%]
..................................................................................................................................................................................... [ 58%]
..................................................................................................................................................................................... [ 63%]
..................................................................................................................................................................................... [ 67%]
..................................................................................................................................................................................... [ 72%]
..................................................................................................................................................................................... [ 76%]
..................................................................................................................................................................................... [ 81%]
..................................................................................................................................................................................... [ 85%]
..................................................................................................................................................................................... [ 90%]
..................................................................................................................................................................................... [ 95%]
.................................................................................. [ 97%]
tests/unit/model/preferences/test_deployment_preference_collection.py ..... [ 97%]
tests/unit/test_region_configuration.py .....F.......... [ 97%]
tests/unit/translator/test_arn_generator.py .............. [ 97%]
tests/utils/test_dynamic_references.py ........ [ 98%]
tests/utils/test_py27hash_fix.py ................................................................... [ 99%]
tests/utils/test_utils.py ....... [100%]

========================================================================================= FAILURES ==========================================================================================
__________________________________________________ TestServerlessAppPlugin_on_before_transform_template_translate.test_sar_success_one_app __________________________________________________

self =
SamTemplateMock =

@patch("samtranslator.plugins.application.serverless_app_plugin.SamTemplate")
def test_sar_success_one_app(self, SamTemplateMock):
template_dict = {"a": "b"}
app_resources = [
("id1", ApplicationResource(app_id="id1", semver="1.0.0", location=True)),
]

sam_template = Mock()
SamTemplateMock.return_value = sam_template
sam_template.iterate = Mock()
sam_template.iterate.return_value = app_resources

client = Mock()
client.create_cloud_formation_template = Mock()
client.create_cloud_formation_template.return_value = {"TemplateUrl": "/URL", "Status": STATUS_ACTIVE}
self.plugin = ServerlessAppPlugin(sar_client=client)
self.plugin._can_process_application = Mock()
self.plugin._can_process_application.return_value = True
> self.plugin.on_before_transform_template(template_dict)

tests/plugins/application/test_serverless_app_plugin.py:311:
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
samtranslator/metrics/method_decorator.py:117: in wrapper_cw_timer
exec_result = func(*args, **kwargs)
samtranslator/plugins/application/serverless_app_plugin.py:150: in on_before_transform_template
if not RegionConfiguration.is_service_supported("serverlessrepo"): # type: ignore[no-untyped-call]
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _

cls = , service = 'serverlessrepo', region = None

@classmethod
def is_service_supported(cls, service, region=None): # type: ignore[no-untyped-def]
"""
Not all services are supported in all regions. This method returns whether a given
service is supported in a given region. If no region is specified, the current region
(as identified by boto3) is used.
https://aws.amazon.com/about-aws/global-infrastructure/regional-product-services/

:param service: service code (string used to obtain a boto3 client for the service)
:param region: region identifier (e.g., us-east-1)
:return: True, if the service is supported in the region
"""

# Attempt to re-use an existing session if present.
session = boto3.Session() if not boto3.DEFAULT_SESSION else boto3.DEFAULT_SESSION

if not region:
# get the current region
region = session.region_name

# need to handle when region is None so that it won't break
if region is None:
if ArnGenerator.BOTO_SESSION_REGION_NAME is not None:
region = ArnGenerator.BOTO_SESSION_REGION_NAME
else:
> raise NoRegionFound("AWS Region cannot be found")
E samtranslator.translator.arn_generator.NoRegionFound: AWS Region cannot be found

samtranslator/region_configuration.py:50: NoRegionFound
_________________________________________ TestServerlessAppPlugin_on_before_transform_template_translate.test_sar_throttling_doesnt_stop_processing _________________________________________

self =
SamTemplateMock =

@patch("samtranslator.plugins.application.serverless_app_plugin.SamTemplate")
def test_sar_throttling_doesnt_stop_processing(self, SamTemplateMock):
client = Mock()
client.create_cloud_formation_template = Mock()
client.create_cloud_formation_template.side_effect = ClientError(
{"Error": {"Code": "TooManyRequestsException"}}, "CreateCloudFormationTemplate"
)

app_resources = [
("id1", ApplicationResource(app_id="id1", semver="1.0.0", location=True)),
]

sam_template = Mock()
SamTemplateMock.return_value = sam_template
sam_template.iterate = Mock()
sam_template.iterate.return_value = app_resources

self.plugin = ServerlessAppPlugin(sar_client=client)
self.plugin._can_process_application = Mock()
self.plugin._can_process_application.return_value = True
self.plugin._get_sleep_time_sec = Mock()
self.plugin._get_sleep_time_sec.return_value = 0.02
self.plugin.TEMPLATE_WAIT_TIMEOUT_SECONDS = 1.0

> self.plugin.on_before_transform_template({})

tests/plugins/application/test_serverless_app_plugin.py:261:
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
samtranslator/metrics/method_decorator.py:117: in wrapper_cw_timer
exec_result = func(*args, **kwargs)
samtranslator/plugins/application/serverless_app_plugin.py:150: in on_before_transform_template
if not RegionConfiguration.is_service_supported("serverlessrepo"): # type: ignore[no-untyped-call]
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _

cls = , service = 'serverlessrepo', region = None

@classmethod
def is_service_supported(cls, service, region=None): # type: ignore[no-untyped-def]
"""
Not all services are supported in all regions. This method returns whether a given
service is supported in a given region. If no region is specified, the current region
(as identified by boto3) is used.
https://aws.amazon.com/about-aws/global-infrastructure/regional-product-services/

:param service: service code (string used to obtain a boto3 client for the service)
:param region: region identifier (e.g., us-east-1)
:return: True, if the service is supported in the region
"""

# Attempt to re-use an existing session if present.
session = boto3.Session() if not boto3.DEFAULT_SESSION else boto3.DEFAULT_SESSION

if not region:
# get the current region
region = session.region_name

# need to handle when region is None so that it won't break
if region is None:
if ArnGenerator.BOTO_SESSION_REGION_NAME is not None:
region = ArnGenerator.BOTO_SESSION_REGION_NAME
else:
> raise NoRegionFound("AWS Region cannot be found")
E samtranslator.translator.arn_generator.NoRegionFound: AWS Region cannot be found

samtranslator/region_configuration.py:50: NoRegionFound
_______________________________________________ TestServerlessAppPlugin_on_before_transform_template_translate.test_sleep_between_sar_checks ________________________________________________

self =
SamTemplateMock =

@patch("samtranslator.plugins.application.serverless_app_plugin.SamTemplate")
def test_sleep_between_sar_checks(self, SamTemplateMock):
template_dict = {"a": "b"}
client = Mock()

app_resources = [
("id1", ApplicationResource(app_id="id1", semver="1.0.0", location=True)),
]

sam_template = Mock()
SamTemplateMock.return_value = sam_template
sam_template.iterate = Mock()
sam_template.iterate.return_value = app_resources
client.create_cloud_formation_template = Mock()
client.create_cloud_formation_template.side_effect = [
ClientError({"Error": {"Code": "TooManyRequestsException"}}, "CreateCloudFormationTemplate"),
{"TemplateUrl": "/URL", "Status": STATUS_ACTIVE},
]
self.plugin._can_process_application = Mock()
self.plugin._can_process_application.return_value = True
self.plugin = ServerlessAppPlugin(sar_client=client, wait_for_template_active_status=True, validate_only=False)
self.plugin._get_sleep_time_sec = Mock()
self.plugin._get_sleep_time_sec.return_value = 0.001
> self.plugin.on_before_transform_template(template_dict)

tests/plugins/application/test_serverless_app_plugin.py:338:
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
samtranslator/metrics/method_decorator.py:117: in wrapper_cw_timer
exec_result = func(*args, **kwargs)
samtranslator/plugins/application/serverless_app_plugin.py:150: in on_before_transform_template
if not RegionConfiguration.is_service_supported("serverlessrepo"): # type: ignore[no-untyped-call]
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _

cls = , service = 'serverlessrepo', region = None

@classmethod
def is_service_supported(cls, service, region=None): # type: ignore[no-untyped-def]
"""
Not all services are supported in all regions. This method returns whether a given
service is supported in a given region. If no region is specified, the current region
(as identified by boto3) is used.
https://aws.amazon.com/about-aws/global-infrastructure/regional-product-services/

:param service: service code (string used to obtain a boto3 client for the service)
:param region: region identifier (e.g., us-east-1)
:return: True, if the service is supported in the region
"""

# Attempt to re-use an existing session if present.
session = boto3.Session() if not boto3.DEFAULT_SESSION else boto3.DEFAULT_SESSION

if not region:
# get the current region
region = session.region_name

# need to handle when region is None so that it won't break
if region is None:
if ArnGenerator.BOTO_SESSION_REGION_NAME is not None:
region = ArnGenerator.BOTO_SESSION_REGION_NAME
else:
> raise NoRegionFound("AWS Region cannot be found")
E samtranslator.translator.arn_generator.NoRegionFound: AWS Region cannot be found

samtranslator/region_configuration.py:50: NoRegionFound
_________________________________________ TestServerlessAppPlugin_on_before_transform_template_translate.test_unexpected_sar_error_stops_processing _________________________________________

self =
SamTemplateMock =

@patch("samtranslator.plugins.application.serverless_app_plugin.SamTemplate")
def test_unexpected_sar_error_stops_processing(self, SamTemplateMock):
template_dict = {"a": "b"}
app_resources = [
("id1", ApplicationResource(app_id="id1", semver="1.0.0", location=True)),
]

sam_template = Mock()
SamTemplateMock.return_value = sam_template
sam_template.iterate = Mock()
sam_template.iterate.return_value = app_resources

client = Mock()
client.create_cloud_formation_template.side_effect = ClientError(
{"Error": {"Code": "BadBadError"}}, "CreateCloudFormationTemplate"
)
self.plugin = ServerlessAppPlugin(sar_client=client)
self.plugin._can_process_application = Mock()
self.plugin._can_process_application.return_value = True

with self.assertRaises(ClientError):
> self.plugin.on_before_transform_template(template_dict)

tests/plugins/application/test_serverless_app_plugin.py:291:
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
samtranslator/metrics/method_decorator.py:117: in wrapper_cw_timer
exec_result = func(*args, **kwargs)
samtranslator/plugins/application/serverless_app_plugin.py:150: in on_before_transform_template
if not RegionConfiguration.is_service_supported("serverlessrepo"): # type: ignore[no-untyped-call]
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _

@classmethod
def is_service_supported(cls, service, region=None): # type: ignore[no-untyped-def]
"""
Not all services are supported in all regions. This method returns whether a given
service is supported in a given region. If no region is specified, the current region
(as identified by boto3) is used.
https://aws.amazon.com/about-aws/global-infrastructure/regional-product-services/

:param service: service code (string used to obtain a boto3 client for the service)
:param region: region identifier (e.g., us-east-1)
:return: True, if the service is supported in the region
"""

# Attempt to re-use an existing session if present.
session = boto3.Session() if not boto3.DEFAULT_SESSION else boto3.DEFAULT_SESSION

if not region:
# get the current region
region = session.region_name

# need to handle when region is None so that it won't break
if region is None:
if ArnGenerator.BOTO_SESSION_REGION_NAME is not None:
region = ArnGenerator.BOTO_SESSION_REGION_NAME
else:
> raise NoRegionFound("AWS Region cannot be found")
E samtranslator.translator.arn_generator.NoRegionFound: AWS Region cannot be found

samtranslator/region_configuration.py:50: NoRegionFound
___________________________________ TestServerlessAppPlugin_on_before_and_on_after_transform_template.test_time_limit_exceeds_between_combined_sar_calls ____________________________________

self =
SamTemplateMock =

@patch("samtranslator.plugins.application.serverless_app_plugin.SamTemplate")
def test_time_limit_exceeds_between_combined_sar_calls(self, SamTemplateMock):
template_dict = {"a": "b"}
app_resources = [
("id1", ApplicationResource(app_id="id1", semver="1.0.0", location=True)),
]

sam_template = Mock()
SamTemplateMock.return_value = sam_template
sam_template.iterate = Mock()
sam_template.iterate.return_value = app_resources

client = Mock()
client.get_cloud_formation_template = Mock()
client.get_cloud_formation_template.side_effect = [
ClientError({"Error": {"Code": "TooManyRequestsException"}}, "GetCloudFormationTemplate"),
{"Status": STATUS_ACTIVE},
]
client.create_cloud_formation_template = Mock()
client.create_cloud_formation_template.side_effect = [
ClientError({"Error": {"Code": "TooManyRequestsException"}}, "CreateCloudFormationTemplate"),
{"TemplateUrl": "/URL", "Status": STATUS_ACTIVE},
]
plugin = ServerlessAppPlugin(sar_client=client, wait_for_template_active_status=True, validate_only=False)
plugin._get_sleep_time_sec = Mock()
plugin._get_sleep_time_sec.return_value = 0.04
plugin._in_progress_templates = [("appid", "template"), ("appid2", "template2")]
plugin.TEMPLATE_WAIT_TIMEOUT_SECONDS = 0.08

> plugin.on_before_transform_template(template_dict)

tests/plugins/application/test_serverless_app_plugin.py:487:
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
samtranslator/metrics/method_decorator.py:117: in wrapper_cw_timer
exec_result = func(*args, **kwargs)
samtranslator/plugins/application/serverless_app_plugin.py:150: in on_before_transform_template
if not RegionConfiguration.is_service_supported("serverlessrepo"): # type: ignore[no-untyped-call]
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _

cls = , service = 'serverlessrepo', region = None

@classmethod
def is_service_supported(cls, service, region=None): # type: ignore[no-untyped-def]
"""
Not all services are supported in all regions. This method returns whether a given
service is supported in a given region. If no region is specified, the current region
(as identified by boto3) is used.
https://aws.amazon.com/about-aws/global-infrastructure/regional-product-services/

:param service: service code (string used to obtain a boto3 client for the service)
:param region: region identifier (e.g., us-east-1)
:return: True, if the service is supported in the region
"""

# Attempt to re-use an existing session if present.
session = boto3.Session() if not boto3.DEFAULT_SESSION else boto3.DEFAULT_SESSION

if not region:
# get the current region
region = session.region_name

# need to handle when region is None so that it won't break
if region is None:
if ArnGenerator.BOTO_SESSION_REGION_NAME is not None:
region = ArnGenerator.BOTO_SESSION_REGION_NAME
else:
> raise NoRegionFound("AWS Region cannot be found")
E samtranslator.translator.arn_generator.NoRegionFound: AWS Region cannot be found

samtranslator/region_configuration.py:50: NoRegionFound
_____________________________________________________________ TestRegionConfiguration.test_is_service_supported_positive_4_ec2 ______________________________________________________________

a = (,), kw = {}

@wraps(func)
def standalone_func(*a, **kw):
> return func(*(a + p.args), **p.kwargs, **kw)

/usr/lib/python3.10/site-packages/parameterized/parameterized.py:544:
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
tests/unit/test_region_configuration.py:46: in test_is_service_supported_positive
self.assertTrue(RegionConfiguration.is_service_supported(service, region))
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _

cls = , service = 'ec2', region = None

@classmethod
def is_service_supported(cls, service, region=None): # type: ignore[no-untyped-def]
"""
Not all services are supported in all regions. This method returns whether a given
service is supported in a given region. If no region is specified, the current region
(as identified by boto3) is used.
https://aws.amazon.com/about-aws/global-infrastructure/regional-product-services/

:param service: service code (string used to obtain a boto3 client for the service)
:param region: region identifier (e.g., us-east-1)
:return: True, if the service is supported in the region
"""

# Attempt to re-use an existing session if present.
session = boto3.Session() if not boto3.DEFAULT_SESSION else boto3.DEFAULT_SESSION

if not region:
# get the current region
region = session.region_name

# need to handle when region is None so that it won't break
if region is None:
if ArnGenerator.BOTO_SESSION_REGION_NAME is not None:
region = ArnGenerator.BOTO_SESSION_REGION_NAME
else:
> raise NoRegionFound("AWS Region cannot be found")
E samtranslator.translator.arn_generator.NoRegionFound: AWS Region cannot be found

samtranslator/region_configuration.py:50: NoRegionFound
================================================================================== short test summary info ==================================================================================
FAILED tests/plugins/application/test_serverless_app_plugin.py::TestServerlessAppPlugin_on_before_transform_template_translate::test_sar_success_one_app - samtranslator.translator.arn_generator.NoRegionFound: AWS Region cannot be found
FAILED tests/plugins/application/test_serverless_app_plugin.py::TestServerlessAppPlugin_on_before_transform_template_translate::test_sar_throttling_doesnt_stop_processing - samtranslator.translator.arn_generator.NoRegionFound: AWS Region cannot be found
FAILED tests/plugins/application/test_serverless_app_plugin.py::TestServerlessAppPlugin_on_before_transform_template_translate::test_sleep_between_sar_checks - samtranslator.translator.arn_generator.NoRegionFound: AWS Region cannot be found
FAILED tests/plugins/application/test_serverless_app_plugin.py::TestServerlessAppPlugin_on_before_transform_template_translate::test_unexpected_sar_error_stops_processing - samtranslator.translator.arn_generator.NoRegionFound: AWS Region cannot be found
FAILED tests/plugins/application/test_serverless_app_plugin.py::TestServerlessAppPlugin_on_before_and_on_after_transform_template::test_time_limit_exceeds_between_combined_sar_calls - samtranslator.translator.arn_generator.NoRegionFound: AWS Region cannot be found
FAILED tests/unit/test_region_configuration.py::TestRegionConfiguration::test_is_service_supported_positive_4_ec2 - samtranslator.translator.arn_generator.NoRegionFound: AWS Region cannot be found
======================================================================== 6 failed, 3978 passed in 339.30s (0:05:39) =========================================================================
```

### Expected result
pytest should not fail.

### Additional environment details

List of installed modules in build env:

```console
Package Version
----------------------------- -----------
alabaster 0.7.16
annotated-types 0.7.0
attrs 24.2.0
babel 2.16.0
boto3 1.35.56
botocore 1.35.56
build 1.2.2.post1
charset-normalizer 3.4.0
defusedxml 0.7.1
distro 1.9.0
docutils 0.21.2
exceptiongroup 1.1.3
imagesize 1.4.1
importlib_metadata 8.5.0
iniconfig 2.0.0
installer 0.7.0
Jinja2 3.1.4
jmespath 1.0.1
jsonschema 4.20.0
jsonschema-specifications 2024.10.1
MarkupSafe 3.0.2
packaging 24.0
parameterized 0.9.0
pluggy 1.5.0
pydantic 2.9.2
pydantic_core 2.23.4
Pygments 2.18.0
pyproject_hooks 1.2.0
pytest 8.2.2
python-dateutil 2.9.0.post0
PyYAML 6.0.2
referencing 0.32.0
requests 2.32.3
rpds-py 0.21.0
s3transfer 0.10.3
setuptools 75.1.0
snowballstemmer 2.2.0
Sphinx 8.1.3
sphinxcontrib-applehelp 2.0.0
sphinxcontrib-devhelp 1.0.6
sphinxcontrib-htmlhelp 2.1.0
sphinxcontrib-jsmath 1.0.1
sphinxcontrib-qthelp 2.0.0
sphinxcontrib-serializinghtml 2.0.0
tokenize_rt 6.1.0
tomli 2.0.1
typing_extensions 4.12.2
urllib3 2.2.2
wheel 0.45.0
zipp 3.20.2
```

Please let me know if you need more details or want me to perform some diagnostics.