Update docker-build.yml

Author: dbccccccc

.github/workflows/docker-build.yml

@@ -22,6 +22,8 @@ jobs:
           buildkitd-config: |
             [worker.oci]
             max-parallelism = 4
+            [worker.containerd]
+            max-parallelism = 4
 
       - name: Login to Docker Hub
         uses: docker/login-action@v3