Issue #3421641 use mariadb-10.6

Closes #3421641

.gitlab-ci.yml

@@ -26,10 +26,6 @@
 # https://docs.gitlab.com/ee/ci/yaml/includes.html#override-included-configuration-values
 ################
 
-.with-database: &with-database
-  name: $_CONFIG_DOCKERHUB_ROOT/mariadb-10.6:dev
-  alias: database
-
 include:
   ################
   # DrupalCI includes:
@@ -60,6 +56,8 @@ variables:
 #   SKIP_ESLINT: '1'
   # @todo Remove this line when https://drupal.org/i/3414093 is fixed.
   CI_DEBUG_SERVICES: "true"
+  _TARGET_DB_TYPE: mariadb
+  _TARGET_DB_VERSION: 10.6
 
 
 ###################################################################################