add artifactory connection

npm-packages/license_checker.yml

+#do artifactory connections
+include: 
+  - https://git.code.tecnalia.com/digicon-webxr-store/ci-files/-/raw/test/npm-packages/artifactory_connect.yml
+  
 before_script:
   # Set PACKAGE_DIR to "." if not already defined. 
   # PACKAGE_DIR should point to where the package.json file is
@@ -18,10 +22,12 @@ license_check:
       - docker
     image: node:latest
     script:
+      # connect job from artifactory_connect.yml
+      - !reference [.connect, script]
       # Change to the directory containing package.json
       - cd $PACKAGE_DIR
       # Install dependencies
-      - npm install
+      - jfrog rt npm install
       - jsgl --local ./ || exit 1
     only:
       - tags