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

Author: felix-renovate[bot]

.github/workflows/release.yaml

@@ -64,7 +64,7 @@ jobs:
       - name: Set up QEMU (for arm64 builds)
         uses: docker/setup-qemu-action@ce360397dd3f832beb865e1373c09c0e9f86d70a # v4
       - name: Set up Docker Buildx
-        uses: docker/setup-buildx-action@e468171a9de216ec08956ac3ada2f0791b6bd435 # v3
+        uses: docker/setup-buildx-action@4d04d5d9486b7bd6fa91e7baf45bbb4f8b9deedd # v4
 
       - name: Build and push Dockerfile.base (ghcr.io/planetscale/ghcommit-action)
         run: |