chore(deps): update docker/metadata-action digest to ef25336 (#719)

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This PR contains the following updates:

| Package | Type | Update | Change |
|---|---|---|---|
| docker/metadata-action | action | digest | `818d4b7` -> `ef25336` |

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.github/workflows/release-please.yaml

@@ -84,7 +84,7 @@ jobs:
 
       - name: Extract metadata (tags, labels) for Docker
         id: meta
-        uses: docker/metadata-action@818d4b7b91585d195f67373fd9cb0332e31a7175
+        uses: docker/metadata-action@ef25336f420be2d1a49205baf41a9b88712a65a1
         with:
           images: ${{ env.REGISTRY }}/${{ matrix.path }}