Fix Windows CI and update Python version support

[Takishima]

Summary

• Fix Windows system tests that have been failing in CI
• Drop support for EOL Python versions and add Python 3.13

Changes

1. Fix PowerShell exit code handling (tests/run_tests.ps1)

• Replace $? with $LASTEXITCODE for proper exit code capture
• Fix inverted test logic: cmake_good should fail when exit code != 0, cmake_bad should fail when exit code == 0
• Add exit code to error message for easier debugging

$? in PowerShell is a boolean (True/False), not the actual exit code. The correct way to capture external program exit codes is $LASTEXITCODE.

2. Fix broken cppcheck installation (.github/workflows/ci.yml)

The Chocolatey cppcheck package was compiled with a hardcoded FILESDIR path that doesn't exist on GitHub Actions runners. Additionally, Strawberry Perl (pre-installed on Windows runners) bundles a broken cppcheck that was being picked up.

Fix: Use the cppcheck pip wheel package which works correctly.

3. Update Python version support

• Drop Python 3.8 and 3.9 (end-of-life)
• Add Python 3.13 support
• Minimum Python version is now 3.10
• Update ruff target-version to py310

Test plan

• Windows system tests pass in CI
• Linux system tests continue to pass
• macOS system tests continue to pass
• Unit tests pass for Python 3.10, 3.11, 3.12, 3.13

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 100.00%. Comparing base (2ad3c44) to head (61d7596).
⚠️ Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff            @@
##              main      #131   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files           10        10           
  Lines          604       604           
  Branches       114       101   -13     
=========================================
  Hits           604       604           

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[codacy-production]

Coverage summary from Codacy

See diff coverage on Codacy

Coverage variation	Diff coverage
Report missing for 2ad3c441	✅ ∅ (target: 70.00%)

Coverage variation details

	Coverable lines	Covered lines	Coverage
Common ancestor commit (2ad3c44)	Report Missing	Report Missing	Report Missing
Head commit (61d7596)	604	604	100.00%

Coverage variation is the difference between the coverage for the head and common ancestor commits of the pull request branch: <coverage of head commit> - <coverage of common ancestor commit>

Diff coverage details

	Coverable lines	Covered lines	Diff coverage
Pull request (#131)	0	0	∅ (not applicable)

Diff coverage is the percentage of lines that are covered by tests out of the coverable lines that the pull request added or modified: <covered lines added or modified>/<coverable lines added or modified> * 100%

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Footnotes

1. Codacy didn't receive coverage data for the commit, or there was an error processing the received data. Check your integration for errors and validate that your coverage setup is correct. ↩