Update config.yml

Author: luizrrodrigues

.circleci/config.yml

@@ -28,6 +28,7 @@ jobs:
       - attach_workspace:
           at: .
       - run: echo "//registry.npmjs.org/:_authToken=$NPM_TOKEN" >> ~/.npmrc
+      - run: npm install
       - run: npm publish --tag test-release
 # dont change anything
 workflows: