Bump phpstan/phpstan from 2.1.46 to 2.2.3 (#15)

Bumps [phpstan/phpstan](https://github.com/phpstan/phpstan-phar-composer-source) from 2.1.46 to 2.2.3.
- [Commits](https://github.com/phpstan/phpstan-phar-composer-source/commits)

---
updated-dependencies:
- dependency-name: phpstan/phpstan
  dependency-version: 2.2.3
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]