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

Author: renovate[bot]

.github/workflows/publish.yml

@@ -40,7 +40,7 @@ jobs:
       # multi-platform images and export cache
       # https://github.com/docker/setup-buildx-action
       - name: Set up Docker Buildx
-        uses: docker/setup-buildx-action@v3
+        uses: docker/setup-buildx-action@v4
 
       # Login against a Docker registry except on PR
       # https://github.com/docker/login-action