Update GitHub Workflow for tag generation

The commit introduces a step within the GitHub Workflow to generate Docker tags. This is done before building and pushing the Docker image. The tag is now dynamically created based on the current timestamp, improving version control for Docker images.

.github/workflows/deploy-container.yaml

@@ -12,6 +12,10 @@ jobs:
       - name: Check out the repo
         uses: actions/checkout@v2
 
+      - name: Generate Docker tag
+        id: generate_tag   # Give an ID to this step to use its outputs
+        run: echo "::set-output name=tag::hugo-site:$(date +%s)"checkout@v2
+
       - name: Log in to Docker Hub
         uses: docker/login-action@v3
         with:
@@ -21,5 +25,6 @@ jobs:
       - name: Build and push Docker image
         uses: docker/build-push-action@v2
         with:
+          context: .
           push: true
-          tags: hugo-site:$(date +%s)
+          tags: ${{ steps.generate_tag.outputs.tag }}