Use other node version for CI

Author: jerbob92

.github/workflows/build.yml

@@ -11,10 +11,10 @@ jobs:
     steps:
       - uses: actions/checkout@v1
 
-      - name: Set Node.js 10.x
+      - name: Set Node.js 12.x
         uses: actions/setup-node@v1
         with:
-          node-version: "10.x"
+          node-version: "12.x"
 
       - name: Build Plugin Source
         run: cd src && npm run build