- Add GitHub Action to patch PHP headers for C++ compatibility
- Update swoole/phpx from v2.4.3 to v2.6.3
- Add phpstan/phpstan as dev dependency
- Update composer.lock with new package versions
- Add complete GPL-3.0 license file to project root
- Update plugin-api-version from 2.1.0 to 2.9.0 in composer.lock