[misc] adding MariaDB enterprise 10.4/10.5 to travis test suite

.travis.yml

@@ -39,10 +39,15 @@ jobs:
     - env: srv=build
     - env: srv=xpand TEST_DB_OTHER="initSql=SET NAMES UTF8"
   include:
+    - if: type = push AND fork = false
+      env: srv=mariadb-es v=10.4
+    - if: type = push AND fork = false
+      env: srv=mariadb-es v=10.5
+    - if: type = push AND fork = false
+      env: srv=mariadb-es v=10.6
     - env: srv=mariadb v=10.6
       os: windows
       language: shell
-    - env: srv=mariadb v=10.2 local=1
     - env: srv=mariadb v=10.3 local=1
     - env: srv=mariadb v=10.4 local=1
     - env: srv=mariadb v=10.5 local=1
@@ -58,8 +63,6 @@ jobs:
       env: srv=xpand TEST_DB_OTHER="initSql=SET NAMES UTF8"
     - if: type = push AND fork = false
       env: srv=build
-    - if: type = push AND fork = false
-      env: srv=mariadb-es v=10.6
     - if: type = push AND fork = false
       env: srv=mysql v=5.7
     - if: type = push AND fork = false
@@ -69,7 +72,6 @@ jobs:
     - if: type = push AND fork = false
       env: srv=skysql-ha
 
-
 script:
   - mvn clean -Dmaven.test.skip
   - if [ -n "$BENCH" ] ; then mvn package -P bench -Dmaven.test.skip -Dmaven.javadoc.skip=true ; fi