az devops command throw an exception

Using Azure CLI i was developing some scripts and suddenly i started getting exceptions using only "az devops" command !

**Command Name**
`az devops`

**Errors:**
```
The command failed with an unexpected error. Here is the traceback:
The operation 'azext_devops.dev.team.credentials#credential_set' is invalid.
Traceback (most recent call last):
File "D:\a\1\s\build_scripts\windows\artifacts\cli\Lib\site-packages\azure/cli/core/commands/command_operation.py", line 59, in get_op_handler
File "importlib\__init__.py", line 127, in import_module
File "", line 1014, in _gcd_import
File "", line 991, in _find_and_load
File "", line 975, in _find_and_load_unlocked
File "", line 671, in _load_unlocked
File "", line 783, in exec_module
File "", line 219, in _call_with_frames_removed
File "C:\Users\akeddo\.azure\cliextensions\azure-devops\azext_devops\dev\team\credentials.py", line 15, in
from azext_devops.dev.common._credentials import clear_credential, set_credential
File "C:\Users\akeddo\.azure\cliextensions\azure-devops\azext_devops\dev\common\_credentials.py", line 10, in
from .credential_store import CredentialStore
File "C:\Users\akeddo\.azure\cliextensions\azure-devops\azext_devops\dev\common\credential_store.py", line 11, in
from .config import AZ_DEVOPS_GLOBAL_CONFIG_DIR
File "C:\Users\akeddo\.azure\cliextensions\azure-devops\azext_devops\dev\common\config.py", line 37, in
azdevops_config.config_parser.read(AZ_DEVOPS_GLOBAL_CONFIG_PATH)
File "configparser.py", line 697, in read
File "configparser.py", line 1017, in _read
File "encodings\cp1252.py", line 23, in decode
UnicodeDecodeError: 'charmap' codec can't decode byte 0x9d in position 116: character maps to

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
File "D:\a\1\s\build_scripts\windows\artifacts\cli\Lib\site-packages\knack/cli.py", line 231, in invoke
File "D:\a\1\s\build_scripts\windows\artifacts\cli\Lib\site-packages\azure/cli/core/commands/__init__.py", line 583, in execute
File "D:\a\1\s\build_scripts\windows\artifacts\cli\Lib\site-packages\knack/parser.py", line 261, in parse_args
File "argparse.py", line 1768, in parse_args
File "D:\a\1\s\build_scripts\windows\artifacts\cli\Lib\site-packages\azure/cli/core/parser.py", line 284, in parse_known_args
File "argparse.py", line 1800, in parse_known_args
File "argparse.py", line 2009, in _parse_known_args
File "argparse.py", line 1965, in consume_positionals
File "argparse.py", line 1874, in take_action
File "argparse.py", line 1159, in __call__
File "D:\a\1\s\build_scripts\windows\artifacts\cli\Lib\site-packages\azure/cli/core/parser.py", line 284, in parse_known_args
File "argparse.py", line 1800, in parse_known_args
File "argparse.py", line 2009, in _parse_known_args
File "argparse.py", line 1965, in consume_positionals
File "argparse.py", line 1858, in take_action
File "D:\a\1\s\build_scripts\windows\artifacts\cli\Lib\site-packages\azure/cli/core/parser.py", line 275, in _get_values
File "argparse.py", line 2399, in _get_values
File "D:\a\1\s\build_scripts\windows\artifacts\cli\Lib\site-packages\azure/cli/core/parser.py", line 326, in _check_value
File "D:\a\1\s\build_scripts\windows\artifacts\cli\Lib\site-packages\azure/cli/core/parser.py", line 201, in get_examples
File "D:\a\1\s\build_scripts\windows\artifacts\cli\Lib\site-packages\azure/cli/core/_help.py", line 192, in get_examples
File "D:\a\1\s\build_scripts\windows\artifacts\cli\Lib\site-packages\knack/help.py", line 253, in __init__
File "D:\a\1\s\build_scripts\windows\artifacts\cli\Lib\site-packages\azure/cli/core/_help.py", line 303, in load
File "D:\a\1\s\build_scripts\windows\artifacts\cli\Lib\site-packages\azure/cli/core/_help_loaders.py", line 154, in versioned_load
File "D:\a\1\s\build_scripts\windows\artifacts\cli\Lib\site-packages\knack/help.py", line 198, in load
File "D:\a\1\s\build_scripts\windows\artifacts\cli\Lib\site-packages\knack/parser.py", line 241, in __getattribute__
File "D:\a\1\s\build_scripts\windows\artifacts\cli\Lib\site-packages\azure/cli/core/commands/command_operation.py", line 133, in description_loader
File "D:\a\1\s\build_scripts\windows\artifacts\cli\Lib\site-packages\azure/cli/core/commands/command_operation.py", line 66, in get_op_handler
ValueError: The operation 'azext_devops.dev.team.credentials#credential_set' is invalid.

```

## To Reproduce:
Steps to reproduce the behavior. Note that argument values have been redacted, as they may contain sensitive information.

- _Put any pre-requisite steps here..._
- `az devops {}`

## Expected Behavior

## Environment Summary
```
Windows-10-10.0.19041-SP0
Python 3.8.9
Installer: MSI

azure-cli 2.34.1

Extensions:
account 0.2.2
ad 0.1.0
azure-devops 0.23.0

Dependencies:
msal 1.16.0
azure-mgmt-resource 20.0.0
```
## Additional Context