chore(deps): update docker/setup-buildx-action digest to e468171

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@29109295f81e9208d7d86ff1c6c12d2833863392 # v3
       - name: Set up Docker Buildx
-        uses: docker/setup-buildx-action@b5ca514318bd6ebac0fb2aedd5d36ec1b5c232a2 # v3
+        uses: docker/setup-buildx-action@e468171a9de216ec08956ac3ada2f0791b6bd435 # v3
 
       - name: Build and push Dockerfile.base (ghcr.io/planetscale/ghcommit-action)
         run: |