CHANGELOG: pick changelog from branch release-2.1 and branch r… (#11017)
CHANGELOG: pick changelog from branch release-2.1 and branch r… (#11017)


kyle-wang/tidb,pingcap/tidb,ngaut/tidb,c4pt0r/tidb,Cofyc/tidb,c4pt0r/tidb,coocood/tidb,cosmtrek/tidb,c4pt0r/tidb,kyle-wang/tidb,ngaut/tidb,EvilMcJerkface/tidb,pingcap/tidb,ming-relax/tidb,pingcap/tidb,ngaut/tidb,ngaut/tidb,pingcap/tidb,c4pt0r/tidb,c4pt0r/tidb,kyle-wang/tidb,ngaut/tidb,XuHuaiyu/tidb,c4pt0r/tidb,pingcap/tidb,coocood/tidb,kyle-wang/tidb,pingcap/tidb,EvilMcJerkface/tidb,kyle-wang/tidb,ming-relax/tidb,XuHuaiyu/tidb,ngaut/tidb,cosmtrek/tidb,qiuyesuifeng/tidb,kyle-wang/tidb,Cofyc/tidb,qiuyesuifeng/tidb