Make easier to use MariaDB 10.4

Just add the following 2 lines in a SR:

[mariadb]
location = ${mariadb-10.4:location}
10 jobs for erp5-component in 0 seconds
Status Job ID Name Coverage
  External
passed SlapOS.SlapRunner.ResilienceTest-Master

00:24:42

failed SlapOS.SlapRunner.ResilienceTest-Master.ERP5

02:23:12

canceled SlapOS.SoftwareReleases.IntegrationTest-Master.Python2

16:08:18

failed SlapOS.SoftwareReleases.IntegrationTest-Master.Python3

05:36:53

passed SlapOS.SlapRunner.ResilienceTest-Master

00:28:37

passed SlapOS.SlapRunner.ResilienceTest-Master

00:28:32

passed SlapOS.SlapRunner.ResilienceTest-Master

00:27:03

failed SlapOS.SlapRunner.ResilienceTest-Master.ERP5

07:59:55

failed SlapOS.SlapRunner.ResilienceTest-Master.ERP5

02:41:24

failed SlapOS.SoftwareReleases.IntegrationTest-Master.Python3

03:59:41