Try to prevent double attach-sources execution
Try to prevent double attach-sources execution

The log shows maven-source-plugin executing twice during release, which
causes the 2nd upload of the sources jar to fail the release.

shadyysf/ImportedFromSomewhere,shadyysf/ImportedFromSomewhere,shadyysf/ImportedFromSomewhere,shadyysf/ImportedFromSomewhere