Add delay before publish confirmation

Author: nsk90

.github/workflows/gradle-publish.yml

@@ -37,5 +37,7 @@ jobs:
       - name: Publish with Gradle
         run: ./gradlew publish
 
+      - name: Delay (try fix random uploaded artefact count)
+        run: sleep 30
       - name: Confirm publishing
         run: curl -X POST -u "${{ secrets.MAVEN_USERNAME }}:${{ secrets.MAVEN_PASSWORD }}" "https://ossrh-staging-api.central.sonatype.com/manual/upload/defaultRepository/io.github.nsk90"