{AOSM} Remove deprecated pkg_resources declare namespace

[yanzhudd]

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Description

The Azure CLI pipeline failed due to a namespace package issue caused by the deprecated pkg_resources in the AOSM module. This PR removes it to fix the Azure CLI pipeline.

cc @nafizhaider32

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[yonzhan]

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[Copilot]

Pull request overview

Updates the AOSM Azure CLI extension to remove a deprecated pkg_resources namespace declaration and publishes a new beta version to reflect the change.

Changes:

• Bump extension version to 2.0.0b5.
• Remove __import__('pkg_resources').declare_namespace(__name__) from the vendored SDK package init.
• Add a 2.0.0b5 entry to HISTORY.rst.

Reviewed changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated 1 comment.

File	Description
src/aosm/setup.py	Bumps extension version to 2.0.0b5.
src/aosm/azext_aosm/vendored_sdks/azure_storagev2/__init__.py	Removes deprecated pkg_resources namespace declaration.
src/aosm/HISTORY.rst	Documents the change in the release history.

[azclibot]

[Release] Update index.json for extension [ aosm-2.0.0b5 ] : https://dev.azure.com/msazure/One/_build/results?buildId=152522832&view=results