[Dev] 【通告】openEuler-20.09版本分支已从主干master拉取

Hi all 社区于8-22日从master拉取了openEuler-20.09的分支，并基于此分支构建20.09创新版本，请各位maintainer确认20.09的需求都已同步无误。后续该分支代码受控合入，问题修改请及时同步到20.09分支。

Hi all On August 22, the community obtained the openEuler-20.09 branch from the master node and built the 20.09 innovation version based on this branch. Maintainers need to confirm that the requirements of 20.09 have been correctly synchronized and that subsequent bug fix needs to be synchronized to the 20.09 branch in time.