mariadb: update to version 10.4.7
- Refreshed patches
- Fixes CVEs: CVE-2019-2805 CVE-2019-2740 CVE-2019-2739 CVE-2019-2737 CVE-2019-2758
Compile tested and run tested on MOX, HBS. Tests done: Installed nextcloud, add folders and files, installed new Mariadb, rebooted and it still works.