branch-2.1: [fix](auth)Fix after fe restarting, external permissions are lost (#43307)

Cherry-picked from #43275

Co-authored-by: zhangdong <493738387@qq.com>

fe/fe-core/src/main/java/org/apache/doris/mysql/privilege/Auth.java

@@ -597,7 +597,9 @@ public class Auth implements Writable {
             throws DdlException {
         writeLock();
         try {
-            checkTablePatternExist(tblPattern);
+            if (!isReplay) {
+                checkTablePatternExist(tblPattern);
+            }
             if (role == null) {
                 if (!doesUserExist(userIdent)) {
                     throw new DdlException("user " + userIdent + " does not exist");