docs: update dynamic privileges proposal for SEM changes (#25503)
docs: update dynamic privileges proposal for SEM changes (#25503)

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