galera and mariadb security update

galera 26.4.20-1.0.1 - Drop nmap-ncat requirement. Orabug: 34116228 - Requirement to delete lp1184034 test case without using patches. 26.4.20-1 - Rebase to 26.4.20 26.4.19-1 - Rebase to 26.4.19 26.4.18-1 - Rebase to 26.4.18 mariadb 3:10.5.27-1 - Rebase to 10.5.27 3:10.5.26-1 - Rebase to 10.5.26...