executor: make TestSplitRegionTimeout stable (#13152)
executor: make TestSplitRegionTimeout stable (#13152)


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