build(ci): add Node.js 14 (#101)

Author: gengjiawen

.github/workflows/ci.yml

@@ -14,7 +14,7 @@ jobs:
     strategy:
       matrix:
         os: [windows-latest, macOS-latest, ubuntu-latest]
-        node-version: [10.x, 12.x]
+        node-version: [10.x, 12.x, 14.x]
 
     steps:
       - name: Fix git checkout line endings