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

Author: renovate[bot]

.github/workflows/docker.yml

@@ -53,7 +53,7 @@ jobs:
       - name: Set up QEMU
         uses: docker/setup-qemu-action@v3
       - name: Set up Docker Buildx
-        uses: docker/setup-buildx-action@v3
+        uses: docker/setup-buildx-action@v4
       - name: Cache Docker layers
         uses: actions/cache@v5
         with: