fix(travis): install apm on release job

Author: UziTech

.travis.yml

@@ -23,7 +23,11 @@ jobs:
       script: npm i && npm run lint
 
     - stage: release 🎉
-      script: npm i && npm run semantic-release
+      script:
+        - curl -s -O https://raw.githubusercontent.com/atom/ci/master/build-package.sh
+        - chmod u+x build-package.sh
+        - ./build-package.sh
+        - npm i && npm run semantic-release
 
 notifications:
   email: