fixes staging snapshots deployment

Author: ivangsa

.github/workflows/build.yml

@@ -47,7 +47,7 @@ jobs:
           cd target-branch
           git add -A
           git commit -m "Deploy $GROUP_ID:$ARTIFACT_ID:$VERSION" || echo "No changes to commit"
-          git push origin "$STAGING_BRANCH"
+          git push -u origin "$STAGING_BRANCH"
 
       - name: Generate JaCoCo Badge
         id: jacoco