- Remove actions/checkout@v4, shivammathur/setup-php@v2, actions/cache@v3
- Replace with native shell commands (git clone, apt-get, simple file cache)
- Should be much faster (no GitHub Action downloads)
- Eliminates dependency on GitHub for action downloads
- Change composer validate from --strict to --no-check-lock
- Add automatic lock file update attempt
- Prevents workflow failure when lock file is not in sync with composer.json