chore: update Node.js required version (#474)

BREAKING CHANGE: minimum supported Node.js version is `10.13.0`

Author: evilebottnawi

.github/workflows/nodejs.yml

@@ -55,7 +55,7 @@ jobs:
     strategy:
       matrix:
         os: [ubuntu-latest, windows-latest, macos-latest]
-        node-version: [8.x, 10.x, 12.x, 14.x]
+        node-version: [10.x, 12.x, 14.x]
         webpack-version: [latest, next]
 
     runs-on: ${{ matrix.os }}

babel.config.js

@@ -10,7 +10,7 @@ module.exports = (api) => {
         '@babel/preset-env',
         {
           targets: {
-            node: '8.9.0',
+            node: '10.13.0',
           },
         },
       ],