build(deps): bump docker/metadata-action (#3074)

Bumps [docker/metadata-action](https://github.com/docker/metadata-action) from 62339db73c56dd749060f65a6ebb93a6e056b755 to e6428a5c4e294a61438ed7f43155db912025b6b3.
- [Release notes](https://github.com/docker/metadata-action/releases)
- [Commits](https://github.com/docker/metadata-action/compare/62339db73c56dd749060f65a6ebb93a6e056b755...e6428a5c4e294a61438ed7f43155db912025b6b3

)

---
updated-dependencies:
- dependency-name: docker/metadata-action
  dependency-type: direct:production
...

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.github/workflows/build-container.yml

@@ -30,7 +30,7 @@ jobs:
           password: ${{ secrets.GITHUB_TOKEN }}
       - name: Extract metadata (tags, labels) for Docker
         id: meta
-        uses: docker/metadata-action@62339db73c56dd749060f65a6ebb93a6e056b755
+        uses: docker/metadata-action@e6428a5c4e294a61438ed7f43155db912025b6b3
         with:
           images: ${{ env.REGISTRY }}/freifunk-gluon/${{ env.IMAGE_NAME }}
       - name: Build and push Docker image