Update .gitlab-ci.yml

.gitlab-ci.yml

@@ -12,14 +12,14 @@ cache:
 build:
   stage: build
   script:
-    - mvn install
+    - mvn $MAVEN_CLI_OPTS install
 
 test:
   stage: test
   script:
-    - mvn test
+    - mvn $MAVEN_CLI_OPTS test
 
 verify:
   stage: test
   script:
-    - mvn verify
+    - mvn $MAVEN_CLI_OPTS verify