Update docker/metadata-action digest to c1e5197

Author: renovate[bot]

.github/workflows/docker-publish.yml

@@ -64,7 +64,7 @@ jobs:
       # https://github.com/docker/metadata-action
       - name: Extract Docker metadata
         id: meta
-        uses: docker/metadata-action@b798ed8388581f6f002541048b6458ca2c4ba442
+        uses: docker/metadata-action@c1e51972afc2121e065aed6d45c65596fe445f3f
         with:
           images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}