chore(deps): update docker/setup-buildx-action action to v4

Author: renovate[bot]

.github/workflows/docker.yml

@@ -48,7 +48,7 @@ jobs:
         uses: docker/setup-qemu-action@v4.0.0
 
       - name: Set up Docker Buildx
-        uses: docker/setup-buildx-action@v3.12.0
+        uses: docker/setup-buildx-action@v4.0.0
 
       - name: Login to GitHub Container Registry
         uses: docker/login-action@v4.0.0