fix pluginpkg.go typo (#10202)
fix pluginpkg.go typo (#10202)


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