chore(deps): bump docker/metadata-action from 4 to 5

Bumps [docker/metadata-action](https://github.com/docker/metadata-action) from 4 to 5.
- [Release notes](https://github.com/docker/metadata-action/releases)
- [Upgrade guide](https://github.com/docker/metadata-action/blob/master/UPGRADE.md)
- [Commits](docker/metadata-action@v4...v5)

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

Signed-off-by: dependabot[bot] <[email protected]>

.github/workflows/docker-release.yml

@@ -69,7 +69,7 @@ jobs:
 
       - name: Extract Docker metadata (ordinary version)
         id: meta-ordinary
-        uses: docker/metadata-action@v4
+        uses: docker/metadata-action@v5
         with:
           images: |
             ${{ secrets.DOCKER_USERNAME }}/rsshub
@@ -99,7 +99,7 @@ jobs:
 
       - name: Extract Docker metadata (Chromium-bundled version)
         id: meta-chromium-bundled
-        uses: docker/metadata-action@v4
+        uses: docker/metadata-action@v5
         with:
           images: |
             ${{ secrets.DOCKER_USERNAME }}/rsshub

.github/workflows/docker-test.yml

@@ -40,7 +40,7 @@ jobs:
 
       - name: Extract Docker metadata
         id: meta
-        uses: docker/metadata-action@v4
+        uses: docker/metadata-action@v5
         with:
           images: rsshub
           flavor: latest=true