(wafv2): wafv2.CfnWebACL.ExcludedRuleProperty name argument casing

### Describe the bug

Not sure if this is a documentation bug, or a bug within CDK, but we're trying to modify rule sets on a Web ACL, and it's unclear if the `name` argument to `wafv2.CfnWebACL.ExcludedRuleProperty` is supposed to be upper-cased or lower-cased. The documentation at https://docs.aws.amazon.com/cdk/api/v2/python/aws_cdk.aws_wafv2/CfnWebACL.html#excludedruleproperty specifies `name` (with a lower-case `n`).

But we see the following error (warning?) when running CDK:

```
Properties validation failed for resource cirrusscanwafacl with message:
#/Rules/3/Statement/RateBasedStatement/ScopeDownStatement/NotStatement/Statement/SizeConstraintStatement/FieldToMatch/SingleHeader: required key [Name] not found
#/Rules/3/Statement/RateBasedStatement/ScopeDownStatement/NotStatement/Statement/SizeConstraintStatement/FieldToMatch/SingleHeader: extraneous key [name] is not permitted
```

The modifications to the rule list seem to take effect, despite the error (warning?) displayed above.

### Expected Behavior

I would not expect to see validation errors when using `name`.

### Current Behavior

I see unexpected validation errors when using `name`:

```
#/Rules/3/Statement/RateBasedStatement/ScopeDownStatement/NotStatement/Statement/SizeConstraintStatement/FieldToMatch/SingleHeader: required key [Name] not found
#/Rules/3/Statement/RateBasedStatement/ScopeDownStatement/NotStatement/Statement/SizeConstraintStatement/FieldToMatch/SingleHeader: extraneous key [name] is not permitted
```

### Reproduction Steps

Our CDK stack constructs a WAFv2 Web ACL, and specifies rules using:

```
rules=[
# AWS Common Ruleset (with modifications)
wafv2.CfnWebACL.RuleProperty(
name="CirrusScan-AWSManagedRulesCommonRuleSet",
priority=0,
override_action=wafv2.CfnWebACL.OverrideActionProperty(
none={},
),
visibility_config=wafv2.CfnWebACL.VisibilityConfigProperty(
sampled_requests_enabled=True,
cloud_watch_metrics_enabled=True,
metric_name="CirrusScan-MetricForAMRCommon",
),
statement=wafv2.CfnWebACL.StatementProperty(
managed_rule_group_statement=wafv2.CfnWebACL.ManagedRuleGroupStatementProperty(
vendor_name="AWS",
name="AWSManagedRulesCommonRuleSet",
excluded_rules=[
wafv2.CfnWebACL.ExcludedRuleProperty(
name="SizeRestrictions_BODY"
),
wafv2.CfnWebACL.ExcludedRuleProperty(
name="GenericRFI_BODY"
),
wafv2.CfnWebACL.ExcludedRuleProperty(
name="EC2MetaDataSSRF_BODY"
),
],
),
),
),
```

[Documentation](https://docs.aws.amazon.com/cdk/api/v2/python/aws_cdk.aws_wafv2/CfnWebACL.html#excludedruleproperty) for `wafv2.CfnWebACL.ExcludedRuleProperty` suggests that `name` (lowercase N) should be specified as the parameter, but errors/warnings emitted by CDK suggest it is expecting `Name` (uppercase N).

### Possible Solution

_No response_

### Additional Information/Context

_No response_

### CDK CLI Version

2.96.2

### Framework Version

_No response_

### Node.js Version

18

### OS

Ubuntu Linux

### Language

Python

### Language Version

Python 3.11

### Other information

_No response_

Start by reproducing the Python example with CDK CLI 2.96.2 and inspect the generated WAFv2 resource around ExcludedRuleProperty and SingleHeader. Compare the documented `name` argument with the emitted CloudFormation keys; done means the casing is corrected or clearly documented and the reported validation errors no longer occur.

Written by the indexing model from the issue text.