Update docker/metadata-action action to v5

Author: renovate[bot]

.github/workflows/main.yml

@@ -17,7 +17,7 @@ jobs:
       contents: write
     steps:
       - uses: actions/checkout@v3
-      - uses: docker/metadata-action@v4
+      - uses: docker/metadata-action@v5
         id: meta
         with:
           images: registry.digitalocean.com/XX/api