Use Node v14 in Github workflow

Author: unematiii

.github/workflows/publish.yml

@@ -10,10 +10,9 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v2
-      # Setup .npmrc file to publish to npm
       - uses: actions/setup-node@v2
         with:
-          node-version: '12.x'
+          node-version: '14.x'
           registry-url: 'https://registry.npmjs.org'
       - run: npm install
       - run: npm publish