Fix: fix docker image push failure

* Changed order to have login to ghcr before image build

Author: mrajagopal

.github/workflows/docker-build.yml

@@ -17,6 +17,12 @@ jobs:
       - name: Set up Docker Buildx
         uses: docker/setup-buildx-action@v1
 
+      - name: Log in to GitHub Container Registry
+        uses: docker/login-action@v3
+        with:
+          registry: ghcr.io
+          username: ${{ github.repository_owner }}
+          password: ${{ secrets.GITHUB_TOKEN }}
       - name: Build and push Docker image
         uses: docker/build-push-action@v2
         with:
@@ -25,10 +31,5 @@ jobs:
           push: true
           tags: nginx-utils:latest
 
-      - name: Log in to GitHub Container Registry
-        uses: docker/login-action@v3
-        with:
-          registry: ghcr.io
-          username: ${{ github.repository_owner }}
-          password: ${{ secrets.GITHUB_TOKEN }}
+