Update test.yml (#3475)

Switch to Node.js 14.x.

Co-authored-by: Rich Trott <rtrott@gmail.com>

Author: XhmikosR

.github/workflows/test.yml

@@ -8,7 +8,7 @@ on:
   pull_request:
 
 env:
-  NODE: 12.x
+  NODE: 14.x
 
 jobs:
   test: