Log Message:
php-composer: Update to 2.2.18

Upstream release notes:

- Fixed COMPOSER_NO_DEV so it also works with require and remove's
  --update-no-dev (#10995)
- Fixed duplicate missing extension warnings being displayed (#10938)
- Fixed hg version detection (#10955)
- Fixed git cache invalidation issue when a git tag gets created after the
  cache has loaded a given reference (#11004)