Autodetect and dispatch test runs

[jfriedri-ni]

What does this Pull Request accomplish?

The CI can detect and run tests for each package in packages.json

• Add new workflow test_package.yml, with similar mechanics as check_package.yml
  • Call it from CI.yml for each package name in packages.json
  • Use get_package_info.yml to determine whether there are tests to run for each package
  • Allow it to run in parallel with the jobs in check_package.yml
  • Allow runs on-demand with workflow_dispatch
• Add inputs to run_unit_tests.yml for package information, Python version, and OS
  • Remove the explicit list of jobs that test each package
• Change the matrix values to inputs for run_and_upload_unit_tests
• Upgrade grpc_generator to Poetry 2
• Update grpc_generator to run with Python 3.9 and 3.10 to remove special test treatment

Why should this Pull Request be merged?

• Contributors can add new packages without needing to edit workflow files

What testing has been done?

• PR checks
• Confirmed poetry run generate-stubs still succeeds for grpc_generator

[github-actions]

Test Results

   80 files  + 4     80 suites  +4   2m 20s ⏱️ +24s
  187 tests ± 0    185 ✅ ± 0   2 💤 ±0  0 ❌ ±0 
1 870 runs  +20  1 840 ✅ +20  30 💤 ±0  0 ❌ ±0 

Results for commit a613d0d. ± Comparison against base commit d64b2d0.

♻️ This comment has been updated with latest results.

[Copilot]

Pull Request Overview

This PR implements automatic test detection and execution for packages in the CI pipeline, eliminating the need for manual workflow file updates when adding new packages.

• Replaces hardcoded package testing with dynamic package discovery and dispatch
• Upgrades grpc_generator to Poetry 2 and extends Python version support
• Refactors CI workflows to use reusable components with package-specific inputs

Reviewed Changes

Copilot reviewed 6 out of 7 changed files in this pull request and generated 1 comment.

Show a summary per file

File	Description
.github/workflows/test_package.yml	New workflow for testing individual packages with matrix strategy
.github/workflows/run_unit_tests.yml	Refactored to accept package inputs instead of hardcoded matrix
.github/workflows/CI.yml	Updated to use new test_package workflow
.github/actions/run_and_upload_unit_tests/action.yml	Modified to use input parameters instead of matrix variables
tools/grpc_generator/pyproject.toml	Upgraded to Poetry 2 with Python 3.9+ support
tools/grpc_generator/src/grpc_generator/generator.py	Replaced StrEnum with standard enum for Python 3.9 compatibility

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