Bump the dependencies group with 2 updates (#1750)

Bumps the dependencies group with 2 updates: [phpstan/extension-installer](https://github.com/phpstan/extension-installer) and [phpstan/phpstan](https://github.com/phpstan/phpstan).


Updates `phpstan/extension-installer` from 1.3.1 to 1.4.1
- [Release notes](https://github.com/phpstan/extension-installer/releases)
- [Commits](phpstan/extension-installer@1.3.1...1.4.1)

Updates `phpstan/phpstan` from 1.11.3 to 1.11.4
- [Release notes](https://github.com/phpstan/phpstan/releases)
- [Changelog](https://github.com/phpstan/phpstan/blob/1.11.x/CHANGELOG.md)
- [Commits](phpstan/phpstan@1.11.3...1.11.4)

---
updated-dependencies:
- dependency-name: phpstan/extension-installer
  dependency-type: direct:development
  update-type: version-update:semver-minor
  dependency-group: dependencies
- dependency-name: phpstan/phpstan
  dependency-type: direct:development
  update-type: version-update:semver-patch
  dependency-group: dependencies
...

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