fix(builds): node version now pulls from .nvmrc

Author: ashblue

.nvmrc

@@ -0,0 +1 @@
+v12.9.1

.travis.yml

@@ -1,15 +1,13 @@
 language: node_js
-node_js:
-  - "node"
 install:
   - npm install
 script:
   - commitlint-travis
   - npm run build
   - npm run semantic-release
-deploy: 
+deploy:
   - provider: script
     skip_cleanup: true
     script: bash publish-nightly.sh
-    on: 
+    on:
       branch: develop