Merge pull request #2714 from nginx-proxy/dependabot/github_actions/docker/metadata-action-6

ci: bump docker/metadata-action from 5 to 6

.github/workflows/build-publish-dispatch.yml

@@ -35,7 +35,7 @@ jobs:
 
       - name: Get Docker tags
         id: docker_meta
-        uses: docker/metadata-action@v5
+        uses: docker/metadata-action@v6
         with:
           images: |
             nginxproxy/nginx-proxy

.github/workflows/build-publish.yml

@@ -46,7 +46,7 @@ jobs:
 
       - name: Get Docker tags
         id: docker_meta
-        uses: docker/metadata-action@v5
+        uses: docker/metadata-action@v6
         with:
           images: |
             ghcr.io/nginx-proxy/nginx-proxy