ci: Node14 (apache#459)

* tests: Add Node14 to the test matrix

Author: breautek

.appveyor.yml

@@ -15,6 +15,7 @@ environment:
   matrix:
     - nodejs_version: "10"
     - nodejs_version: "12"
+    - nodejs_version: "14"
 
 platform:
   - x86

.travis.yml

@@ -17,7 +17,7 @@ env:
     - ANDROID_BUILD_TOOLS_VERSION=29.0.3
 
 language: node_js
-node_js: 12
+node_js: 14
 
 # yaml anchor/alias: https://medium.com/@tommyvn/travis-yml-dry-with-anchors-8b6a3ac1b027