ci: added step to display all outputs

.github/workflows/github-packages-publish.yml

@@ -64,5 +64,8 @@ jobs:
         # Overwrite artefactVersion with tag name
         run: ./gradlew build -PartefactVersion=${{ github.event.release.tag_name }}
 
+      - name: List Output Items
+        run: ls -l ./**/build/libs
+
       - name: Publish to Maven Central
         run: ./gradlew publish