server: fix auth fail log (#16318)
server: fix auth fail log (#16318)


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