[ci] Upgrade docker/setup-buildx-action from v2 to v3

Author: Naros

.github/workflows/image-builds-unauth.yml

@@ -25,7 +25,7 @@ jobs:
         uses: docker/setup-qemu-action@v3
       - name: Set up Docker Buildx
         id: buildx
-        uses: docker/setup-buildx-action@v2
+        uses: docker/setup-buildx-action@v3
         with:
           driver-opts: |
             network=host