PCT does not resolve JCasC properly for plugins like Artifact Manager S3, because there is no Group ID resolution for plugins not included into CAP. The default "org.jenkins-ci.plugins" is used, and it is not a case for JCasC.

Failed to execute goal on project artifact-manager-s3: Could not resolve dependencies for project io.jenkins.plugins:artifact-manager-s3:hpi:2.4.2: Could not find artifact org.jenkins-ci.plugins:configuration-as-code:jar:1.20 in ... -> [Help 1]

Until JCasC is included into CAP, PCT tests will be failing if they include JCasC compatibility tests

Acceptance criteria:

• PCT is updated to consult with update center when resolving group IDs for plugins
• There is an integration tests which verifies it