Bump cluster versions for 1.1.9 release

Author: ltangvald

VERSION

@@ -1,7 +1,7 @@
-IMAGE_VERSION=1.1.8-cluster
+IMAGE_VERSION=1.1.9-cluster
 declare -A MYSQL_CLUSTER_VERSIONS
-MYSQL_CLUSTER_VERSIONS["7.5"]=7.5.12
-MYSQL_CLUSTER_VERSIONS["7.6"]=7.6.8
+MYSQL_CLUSTER_VERSIONS["7.5"]=7.5.13
+MYSQL_CLUSTER_VERSIONS["7.6"]=7.6.9
 declare -A MYSQL_SHELL_VERSIONS
 MYSQL_SHELL_VERSIONS["7.5"]=8.0.13
 MYSQL_SHELL_VERSIONS["7.6"]=8.0.13