Fix tags source

Author: Munkkeli

.github/workflows/Prebuild.yaml

@@ -40,5 +40,5 @@ jobs:
         with:
           push: ${{ github.event_name != 'pull_request' }}
           platforms: linux/arm64
-          tags: ${{ env.tags }}
+          tags: ${{ steps.meta.outputs.tags }}
           labels: ${{ steps.meta.outputs.labels }}