fix(travis): upgrade nvm node version

ophiryael · web-flow · commit b0c5e5de481c · 2021-02-15T11:38:10.000+02:00
* Upgrade travis node version to support globalThis

* Install node 12
diff --git a/.travis.yml b/.travis.yml
@@ -5,8 +5,10 @@ python:
     - "3.7"
     - "3.8"
 
+# for semantic-release
 before_install:
-  - nvm use node  # for semantic-release
+  - nvm install 12  
+  - nvm use 12
 
 install:
   - pip install -r requirements-dev.txt
