Bump docker/metadata-action from 4.4.0 to 5.5.1 (#72)

Bumps [docker/metadata-action](https://github.com/docker/metadata-action) from 4.4.0 to 5.5.1.
- [Release notes](https://github.com/docker/metadata-action/releases)
- [Upgrade guide](https://github.com/docker/metadata-action/blob/master/UPGRADE.md)
- [Commits](docker/metadata-action@c4ee3ad...8e5442c)

---
updated-dependencies:
- dependency-name: docker/metadata-action
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

.github/workflows/ci.yml

@@ -76,7 +76,7 @@ jobs:
       # https://github.com/docker/metadata-action
       - name: Extract Docker metadata
         id: meta
-        uses: docker/metadata-action@c4ee3adeed93b1fa6a762f209fb01608c1a22f1e # v4.4.0
+        uses: docker/metadata-action@8e5442c4ef9f78752691e2d8f8d19755c6f78e81 # v5.5.1
         with:
           images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
       # Build and push Docker image with Buildx (don't push on PR)