chore: upgrade deps (#59)

* upgrade deps

* restart CI

* simplify ci

Author: thymikee

.travis.yml

@@ -1,26 +1,20 @@
 language: node_js
 node_js:
-- 10
-- 8
+  - '10'
+  - '8'
 before_install:
-- yarn global add greenkeeper-lockfile@1
+  - yarn global add greenkeeper-lockfile@1
 install: yarn --ignore-engines
 before_script: greenkeeper-lockfile-update
 script:
-- yarn lint && yarn flow && yarn test
+  - yarn lint && yarn flow && yarn test
 after_script: greenkeeper-lockfile-upload
 jobs:
   include:
-  - stage: release
-    node_js: 8
-    os: linux
+    - stage: release
+      node_js: '8'
+      os: linux
 cache:
   yarn: true
   directories:
     - node_modules
-branches:
-  only:
-  - master
-  # Practical when batching releases
-  - next
-  - "/^greenkeeper/.*$/"