mariabackup: Grant ALTER on mysql.mariadb_backup_history

Also adapt our perms as per docs in [1].

This should fix 10.11.14 according to [2].

[1]: https://mariadb.com/docs/server/server-usage/backup-and-restore/mariadb-backup/mariadb-backup-overview#authentication-and-privileges
[2]: https://jira.mariadb.org/browse/MDEV-37406

Closes-Bug: #2120409

Change-Id: I2349d566e38c03b60c87e390cf03166c65bc94b7
Signed-off-by: Michal Nasiadka <[email protected]>
(cherry picked from commit 3b69594)

Author: mnasiadka

ansible/roles/mariadb/tasks/register.yml

@@ -46,7 +46,7 @@
       name: "{{ mariadb_backup_database_user }}"
       password: "{{ mariadb_backup_database_password }}"
       host: "%"
-      priv: "*.*:CREATE TABLESPACE,RELOAD,PROCESS,SUPER,LOCK TABLES,BINLOG MONITOR/{{ mariadb_backup_database_schema }}.mariadb_backup_history:CREATE"
+      priv: "*.*:RELOAD,PROCESS,LOCK TABLES,BINLOG MONITOR/{{ mariadb_backup_database_schema }}.mariadb_backup_history:CREATE,ALTER,INSERT"
       append_privs: True
   when:
     - enable_mariabackup | bool