Update docker/metadata-action digest to dbef880

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@31cebacef4805868f9ce9a0cb03ee36c32df2ac4
+        uses: docker/metadata-action@dbef88086f6cef02e264edb7dbf63250c17cef6c
         with:
           images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}