Update CI config

.gitlab-ci.yml

@@ -1,4 +1,4 @@
-image: maven:latest
+image: maven:3-jdk-11
 
 variables:
   MAVEN_CLI_OPTS: "-s .m2/settings.xml --batch-mode"
@@ -12,7 +12,10 @@ cache:
 build:
   stage: build
   script:
-    - "mvn --batch-mode compile"
+    - "mvn --batch-mode package"
+  artifacts:
+    paths:
+      - target/netneutrality-jar-with-dependencies.jar
 
 test:
   stage: test