Change MariaDB "ADMIN_OPTION" of a ROLE after deleting the user who created it

I have a problem in the prod : I have a user named dba who has all privileges with grant option, i used it to create a role named test, i granted some rights to the role test and granted the role test to the user 'name.name'@'10.25%'. the problem is that i deleted the user dba, so now my role lost the user who had his ADMIN OPTION.

MariaDB [(none)]> SELECT count(*),User,Role,Admin_option FROM mysql.roles_mapping group by role DESC;
+----------+----------------------+-------------+--------------+
| count(*) | User                 | Role        | Admin_option |
+----------+----------------------+-------------+--------------+
|        1 | name.name            | test        | N            |       
+----------+----------------------+-------------+--------------+

now i recreated the user dba, Is there a way to give back the ADMIN OPTION to dba using another super user like root ? what are the possible solutions to back to the normal status ? mariadb info : Server: MariaDB Server version: 10.6.8-MariaDB-1:10.6.8+maria~stretch-log mariadb.org binary distribution Protocol version: 10