Bump phpunit/phpunit from 9.5.16 to 9.5.18
Bump phpunit/phpunit from 9.5.16 to 9.5.18

Bumps [phpunit/phpunit](https://github.com/sebastianbergmann/phpunit) from 9.5.16 to 9.5.18.
- [Release notes](https://github.com/sebastianbergmann/phpunit/releases)
- [Changelog](https://github.com/sebastianbergmann/phpunit/blob/master/ChangeLog-9.5.md)
- [Commits](https://github.com/sebastianbergmann/phpunit/compare/9.5.16...9.5.18)

---
updated-dependencies:
- dependency-name: phpunit/phpunit
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

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