🤖 Update docker/setup-buildx-action action to v4

Author: renovate[bot]

.github/workflows/docker.yml

@@ -26,7 +26,7 @@ jobs:
 
       - id: setup_docker_buildx
         name: Set up Docker Buildx
-        uses: docker/setup-buildx-action@v3
+        uses: docker/setup-buildx-action@v4
 
       - id: login_ghcr
         name: Login to GitHub Container Registry