Merge pull request #553 from nginx-proxy/dependabot/github_actions/docker/setup-buildx-action-3

ci: bump docker/setup-buildx-action from 2 to 3

Author: buchdag

.github/workflows/build-publish.yml

@@ -61,7 +61,7 @@ jobs:
         uses: docker/setup-qemu-action@v2
 
       - name: Set up Docker Buildx
-        uses: docker/setup-buildx-action@v2
+        uses: docker/setup-buildx-action@v3
 
       - name: Login to DockerHub
         uses: docker/login-action@v2