Merge pull request #1684 from c9s/dependabot/github_actions/docker/metadata-action-5

dep: bump docker/metadata-action from 3 to 5

Author: c9s

.github/workflows/docker.yml

@@ -20,7 +20,7 @@ jobs:
     steps:
     - name: Docker meta
       id: meta
-      uses: docker/metadata-action@v3
+      uses: docker/metadata-action@v5
       with:
         # list of Docker images to use as base name for tags
         images: |