chore(deps): update docker/metadata-action action to v5.9.0 (#360)

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

Author: renovate[bot]

.github/workflows/dotnet-pipeline.yml

@@ -86,7 +86,7 @@ jobs:
       # game
       - name: Extract metadata (tags, labels) for Docker
         id: meta-game
-        uses: docker/metadata-action@v5.8.0
+        uses: docker/metadata-action@v5.9.0
         with:
           images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}/game
           tags: |
@@ -106,7 +106,7 @@ jobs:
       # auth
       - name: Extract metadata (tags, labels) for Docker
         id: meta-auth
-        uses: docker/metadata-action@v5.8.0
+        uses: docker/metadata-action@v5.9.0
         with:
           images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}/auth
           tags: |