message: remove shanghai assignee during 5.1 holiday
diff: paths:
  - "**"
  reviewers:
  - - yungezz
  - - zikalino
  - - erich-wang
  - - NullMDR
  - - raych1
  - - lirenhe
  - - weidongxu-microsoft
  - - ArcturusZhang
  - - xccc-msft
  - - ChenTanyi
  - - fengzhou-msft
  - - njuCZ
  - - akning-ms
  - markcowl
  - - leni-msft
  - - qianwens
  - allenjzhang
  - - ruowan
  