Merge pull request #9 from texthtml/renovate/docker-setup-buildx-acti…

…on-3.x

Update docker/setup-buildx-action action to v3

.github/workflows/main.yml

@@ -20,7 +20,7 @@ jobs:
         uses: docker/setup-qemu-action@v1
       -
         name: Set up Docker Buildx
-        uses: docker/setup-buildx-action@v1
+        uses: docker/setup-buildx-action@v3
       -
         name: Login to DockerHub
         uses: docker/login-action@v3