Faster global add on travis

Author: roschaefer

.travis.yml

@@ -21,7 +21,7 @@ jobs:
       - docker build -t humanconnection/api-feathers .
     - script:
       - yarn install --frozen-lockfile --non-interactive
-      - yarn add codacy-coverage
+      - yarn global add codacy-coverage
       - yarn run ci
       - cat ./coverage/lcov.info | codacy-coverage