Merge branch 'master' into renovate/major-eslint-and-prettier

Author: koba04

lib/base.js

@@ -2,7 +2,7 @@ module.exports = {
   extends: ["eslint:recommended"],
   plugins: ["import"],
   parserOptions: {
-    ecmaVersion: 2019,
+    ecmaVersion: "latest",
     sourceType: "module",
   },
   env: {

lib/node.js

@@ -10,6 +10,6 @@ module.exports = {
     "no-console": "off",
   },
   parserOptions: {
-    ecmaVersion: 2020,
+    ecmaVersion: "latest",
   },
 };