chore: move to flat config internally

Author: MikeMcC399

.eslintrc.js

@@ -0,0 +1,27 @@
+import globals from 'globals'
+import pluginJs from '@eslint/js'
+import eslintPlugin from 'eslint-plugin-eslint-plugin'
+import nodePlugin from 'eslint-plugin-n'
+import mochaPlugin from 'eslint-plugin-mocha'
+
+export default [
+  pluginJs.configs.recommended,
+  eslintPlugin.configs['flat/recommended'],
+  nodePlugin.configs['flat/recommended-script'],
+  mochaPlugin.configs.flat.recommended,
+  {
+    languageOptions: {
+      globals: globals.node
+    },
+    rules: {
+      'no-redeclare': 'off',
+      'eslint-plugin/require-meta-docs-url':
+        ['error', { 'pattern': 'https://github.com/cypress-io/eslint-plugin-cypress/blob/master/docs/rules/{{name}}.md' }],
+      'eslint-plugin/require-meta-docs-description': 'error',
+      'n/no-extraneous-require':
+        ['error', { 'allowModules': ['jest-config'] }],
+      'mocha/no-mocha-arrows': 'off',
+      'mocha/no-setup-in-describe': 'off'
+    }
+  },
+]