Bump phpDocumentor/phpstan-ga from 0.12.3 to 0.12.9
Bump phpDocumentor/phpstan-ga from 0.12.3 to 0.12.9

Bumps [phpDocumentor/phpstan-ga](https://github.com/phpDocumentor/phpstan-ga) from 0.12.3 to 0.12.9.
- [Release notes](https://github.com/phpDocumentor/phpstan-ga/releases)
- [Commits](https://github.com/phpDocumentor/phpstan-ga/compare/0.12.3...6c5df17f25d143e917106d8241f8ec033209cdde)

Signed-off-by: dependabot[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@github.com>
phpDocumentor/ReflectionDocBlock