Update docker-nginx-push.yml

Author: kchandan

.github/workflows/docker-nginx-push.yml

@@ -28,8 +28,8 @@ jobs:
     - name: Build the Docker image
       run: |
         cd nginx-image/
-        docker build . --file Dockerfile --tag my-image-name:$(date +%s)
-        docker tag my-image-name:$(date +%s) ${{ github.event.inputs.docker_username }}/my-image-name:latest
+        docker build . --file Dockerfile --tag my-image-name:$(date -I)
+        docker tag my-image-name:$(date -I) ${{ github.event.inputs.docker_username }}/my-image-name:latest
 
     - name: Push the Docker image
       run: docker push ${{ github.event.inputs.docker_username }}/my-image-name:latest