Update GitHub Actions and set PHP platform constraint

[raigu]

Summary

This PR updates GitHub Actions to their latest versions and adds a PHP platform constraint to the Composer configuration.

Key Changes

• GitHub Actions Updates:

  • actions/checkout: master → v4 (latest stable version)
  • github/codeql-action/upload-sarif: v1 → v3 (latest stable version)
  • codecov/codecov-action: v2 → v4 (latest stable version)

• Composer Configuration:

  • Added config.platform.php constraint set to 7.4.33 to ensure consistent dependency resolution across environments

Implementation Details

The platform constraint in composer.json ensures that Composer resolves dependencies as if running on PHP 7.4.33, providing consistency in the lock file and preventing unexpected dependency version changes when developers use different PHP versions locally.

https://claude.ai/code/session_01Evnp1w6hKUeU8wU3ewBPj1

[github-advanced-security]

This pull request sets up GitHub code scanning for this repository. Once the scans have completed and the checks have passed, the analysis results for this pull request branch will appear on this overview. Once you merge this pull request, the 'Security' tab will show more code scanning analysis results (for example, for the default branch). Depending on your configuration and choice of analysis tool, future pull requests will be annotated with code scanning analysis results. For more information about GitHub code scanning, check out the documentation.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 100.00%. Comparing base (541bba2) to head (1b18fc1).
⚠️ Report is 2 commits behind head on main.

Additional details and impacted files

@@             Coverage Diff             @@
##                main        #6   +/-   ##
===========================================
  Coverage     100.00%   100.00%           
  Complexity         9         9           
===========================================
  Files              1         1           
  Lines             26        26           
===========================================
  Hits              26        26           

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