Update docker/setup-buildx-action action to v4

Author: renovate[bot]

.github/workflows/release.yml

@@ -13,7 +13,7 @@ jobs:
     steps:
       - uses: actions/checkout@v6
       - uses: docker/setup-qemu-action@v3
-      - uses: docker/setup-buildx-action@v3
+      - uses: docker/setup-buildx-action@v4
       - uses: docker/login-action@v3
         with:
           registry: ghcr.io