message: action: avoid print tons of logs
  We can hardly get useful information from github action
diff: @@ -87,6 +87,6 @@ jobs:
  --target localhost:5000/$I:nydus-nightly-v6 \
  --backend-config-file ./backend.json --backend-type registry
  - sudo fsck.erofs -d9 output/nydus_bootstrap
  + sudo fsck.erofs -d1 output/nydus_bootstrap
  sudo rm -rf ./output
  done
  