Update catlog-service.yml

Author: SureshKumar-HelloWorld

.github/workflows/catlog-service.yml

@@ -42,7 +42,7 @@ jobs:
         if: ${{ github.ref == 'refs/heads/main' }}
         uses: docker/login-action@v3
         with:
-          username: ${{ vars.DOCKERHUB_USERNAME }}
+          username: ${{ secrets.DOCKERHUB_USERNAME }}
           password: ${{ secrets.DOCKERHUB_TOKEN }}
 
       - name: Build and Publish Docker Image