Fix: Bump ES version in ESlint config

.eslintrc.js

@@ -3,6 +3,7 @@ module.exports = {
         browser: true,
         commonjs: true,
         es2017: true,
+        es11: true,
         node: true,
     },
     extends: [
@@ -10,7 +11,7 @@ module.exports = {
         "plugin:vue/vue3-recommended",
     ],
     parserOptions: {
-        ecmaVersion: 2018,
+        ecmaVersion: 2020,
         sourceType: "module",
     },
     rules: {