Pull Request Overview

This PR bumps the project version from 1.5.7 to 1.5.8 and refactors Pydantic v2 import handling in test code. The imports are moved from global scope to local scope within the specific test function where they're needed.

• Version update from 1.5.7 to 1.5.8
• Replaced conditional imports and runtime skip with pytest decorator
• Moved Pydantic v2 imports to local scope within test function

Reviewed Changes

Copilot reviewed 2 out of 3 changed files in this pull request and generated 1 comment.

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