Issue #3464879 by mogtofu33: [2.0.0-beta2] Ci add PHPMD job
Closes #3464879 See working job isolated: https://git.drupalcode.org/issue/ui_patterns-3464879/-/jobs/2285460
Closes #3464879 See working job isolated: https://git.drupalcode.org/issue/ui_patterns-3464879/-/jobs/2285460