Fix syntax for Docker container creation in CI pipeline

Author: moaminsharifi

.github/workflows/pipeline.yml

@@ -167,7 +167,7 @@ jobs:
               tar c ./maddy-$ver-aarch64-linux-musl | zstd > /maddy-aarch64-linux-musl.tar.zst
           EOF
           docker build -t maddy-builder .
-          container_id=$(docker.create maddy-builder)
+          container_id=$(docker create maddy-builder)
           docker cp $container_id:/maddy-aarch64-linux-musl.tar.zst .
           docker rm $container_id
       - name: Upload binary tree