sql: fix super columns for user/roles that have admin role

Exalate commented:


https://github.com/cockroachdb/cockroach/pull/69981 --- Release note (sql change): pg_authid.rolesuper, pg_roles.rolesuper and pg_user.usesuper now are true for users/roles that have admin role  Fixes: #69943

Jira Issue: DOC-1295