Migrate Python Codebase to Version 3.10

[gitar-bot-staging]

Upgrade Python version from 3.9 to 3.10

Description

This PR upgrades the entire project's Python version requirement from 3.9 to 3.10 across all services, packages, GitHub workflows, and documentation.

Motivation

• End of Life Support: Python 3.9 reached end-of-life for security updates in October 2025, making the upgrade necessary for continued security support
• Enhanced Performance: Python 3.10 introduces performance improvements and optimizations
• Modern Language Features: Access to new language features including structural pattern matching, better error messages, and improved type hints

Changes Made

• Updated GitHub Actions workflows (CI/CD pipelines) to use Python 3.10
• Updated all service setup.py files to require Python ~=3.10
• Updated all package setup.py files with new Python version requirement
• Updated Dockerfiles to use Python 3.10 base images
• Updated README documentation to reflect Python 3.10 requirement
• Replaced deprecated distutils.util.strtobool with custom implementation (distutils removed in Python 3.12)
• Updated distutils.version.StrictVersion to packaging.version.Version for future compatibility
• Updated requirements.txt files generated with Python 3.10

Impact

• Breaking Change: This upgrade requires Python 3.10+ to run the application
• CI/CD: All build and test pipelines now run on Python 3.10
• Dependencies: Some test matrix configurations removed Python 3.9, with Python 3.10 and 3.11 remaining supported
• Compatibility: Code remains backward compatible within supported Python versions

Related Links

• Python 3.10 Release Notes

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Requested by: [email protected]