improve .gitlab.yml

.gitlab-ci.yml

@@ -1,20 +1,19 @@
-image: hosttoday/ht-docker-node:npmci
+image: hosttoday/ht-docker-node:lts
 
 stages:
 - test
 - release
 - trigger
 
+before_script:
+  - npm install -g npmci
+
 testLTS:
   stage: test
   script:
     - npmci test lts
   tags:
     - docker
-
-before_script:
-  - npm uninstall -g npmci
-  - npm install -g npmci
    
 testSTABLE:
   stage: test