chore(deps): update docker/metadata-action digest to 31cebac (#520)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

.github/workflows/release-please.yml

@@ -60,7 +60,7 @@ jobs:
 
       - name: Extract metadata (tags, labels) for Docker
         id: meta
-        uses: docker/metadata-action@35e9aff4f5d665b5aa8a8f2adffaf8a1b5f49cc0
+        uses: docker/metadata-action@31cebacef4805868f9ce9a0cb03ee36c32df2ac4
         with:
           images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}