build(deps-dev): bump phpunit/php-code-coverage from 11.0.5 to 11.0.8

Bumps [phpunit/php-code-coverage](https://github.com/sebastianbergmann/php-code-coverage) from 11.0.5 to 11.0.8.
- [Release notes](https://github.com/sebastianbergmann/php-code-coverage/releases)
- [Changelog](https://github.com/sebastianbergmann/php-code-coverage/blob/11.0.8/ChangeLog-11.0.md)
- [Commits](sebastianbergmann/php-code-coverage@11.0.5...11.0.8)

---
updated-dependencies:
- dependency-name: phpunit/php-code-coverage
  dependency-type: indirect
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>