Linux: fixed user account in container (#218)

Author: mshabunin

.github/workflows/OCV-PR-Linux.yaml

@@ -95,7 +95,8 @@ jobs:
         - /home/opencv-cn/ci_cache/opencv:/opt/.ccache
         - /home/opencv-cn/binaries_cache:/opt/binaries_cache
         - /home/opencv-cn/dnn-models:/opt/dnn-models
-      options: '--user root:root'
+      # NOTE: RU config
+      # options: '--user root:root'
     env:
       ANT_HOME: '/usr/share/ant'
       DNN_MODELS: '/opt/dnn-models'