chore(deps): update docker/metadata-action action to v5.6.0

Author: renovate[bot]

.github/workflows/on-dev.yml

@@ -58,7 +58,7 @@ jobs:
 
       - name: Extract metadata (tags, labels) for Docker
         id: meta
-        uses: docker/metadata-action@v5.5.1
+        uses: docker/metadata-action@v5.6.0
         with:
           images: saltwood233/csharp-openbmclapi
 

.github/workflows/on-release.yml

@@ -27,7 +27,7 @@ jobs:
 
       - name: Extract metadata (tags, labels) for Docker
         id: meta
-        uses: docker/metadata-action@v5.5.1
+        uses: docker/metadata-action@v5.6.0
         with:
           images: saltwood233/csharp-openbmclapi
 

.github/workflows/on-tag.yml

@@ -28,7 +28,7 @@ jobs:
 
       - name: Extract metadata (tags, labels) for Docker
         id: meta
-        uses: docker/metadata-action@v5.5.1
+        uses: docker/metadata-action@v5.6.0
         with:
           images: saltwood233/csharp-openbmclapi