chore: update docker/metadata-action action to v6

Author: renovate-bot

.github/workflows/docker-parallel-multiarch-build.yml

@@ -106,7 +106,7 @@ jobs:
 
       - name: Extract Docker metadata
         id: meta
-        uses: docker/metadata-action@c299e40c65443455700f0fdfc63efafe5b349051 # v5.10.0
+        uses: docker/metadata-action@030e881283bb7a6894de51c315a6bfe6a94e05cf # v6.0.0
         with:
           images: ${{ inputs.registry }}/${{ inputs.image-name }}
           labels: |
@@ -224,7 +224,7 @@ jobs:
 
       - name: Extract Docker metadata
         id: meta
-        uses: docker/metadata-action@c299e40c65443455700f0fdfc63efafe5b349051 # v5.10.0
+        uses: docker/metadata-action@030e881283bb7a6894de51c315a6bfe6a94e05cf # v6.0.0
         with:
           images: ${{ inputs.registry }}/${{ inputs.image-name }}
           labels: |