build(deps): bump docker/metadata-action from 4.1.1 to 4.2.0 (#5945)

Bumps [docker/metadata-action](https://github.com/docker/metadata-action) from 4.1.1 to 4.2.0.
- [Release notes](https://github.com/docker/metadata-action/releases)
- [Commits](https://github.com/docker/metadata-action/compare/v4.1.1...v4.2.0)

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

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.github/workflows/build-docker-image.yml

@@ -66,7 +66,7 @@ jobs:
       # Automatic tag management and OCI Image Format Specification for labels
       - name: Docker meta
         id: meta
-        uses: docker/metadata-action@v4.1.1
+        uses: docker/metadata-action@v4.2.0
         with:
           # list of Docker images to use as base name for tags
           images: |

.github/workflows/zcash-lightwalletd.yml

@@ -74,7 +74,7 @@ jobs:
       # Automatic tag management and OCI Image Format Specification for labels
       - name: Docker meta
         id: meta
-        uses: docker/metadata-action@v4.1.1
+        uses: docker/metadata-action@v4.2.0
         with:
           # list of Docker images to use as base name for tags
           images: |