fix!: cjs build (for eslint 8) (#225)

`index.cjs` output in `0.10.1`: `module.exports = index;`  

`index.cjs` output in `0.11.0`: `exports.default = index;`

Tested with `npm link` in another project

closes oxc-project/oxc#7124

README.md

@@ -53,21 +53,21 @@ If you are using flat configuration (eslint >= 9.0), you can use the following c
 
 ```js
 // eslint.config.js
-import { buildFromOxlintConfigFile } from 'eslint-plugin-oxlint';
+import oxlint from 'eslint-plugin-oxlint';
 export default [
   ..., // other plugins
-  ...buildFromOxlintConfigFile('./oxlint.json'),
+  ...oxlint.buildFromOxlintConfigFile('./oxlint.json'),
 ];
 ```
 
 Or build it by an `oxlint.json`-like object:
 
 ```js
 // eslint.config.js
-import { buildFromOxlintConfig } from 'eslint-plugin-oxlint';
+import oxlint from 'eslint-plugin-oxlint';
 export default [
   ..., // other plugins
-  ...buildFromOxlintConfig({
+  ...oxlint.buildFromOxlintConfig({
     categories: {
       correctness: 'warn'
     },

eslint.config.ts

@@ -1,4 +1,4 @@
-import { buildFromOxlintConfigFile } from './src/index.js';
+import oxlint from './src/index.js';
 import unicorn from 'eslint-plugin-unicorn';
 import eslint from '@eslint/js';
 import eslintConfigPrettier from 'eslint-config-prettier';
@@ -12,5 +12,5 @@ export default [
   unicorn.configs['flat/recommended'],
   ...tseslint.configs.recommended,
   eslintConfigPrettier,
-  ...buildFromOxlintConfigFile('oxlint.json'),
+  ...oxlint.buildFromOxlintConfigFile('oxlint.json'),
 ];

src/index.ts

@@ -3,7 +3,7 @@ import * as ruleMapsByCategory from './rules-by-category.js';
 import configByScope from './configs-by-scope.js';
 import configByCategory from './configs-by-category.js';
 
-export {
+import {
   buildFromOxlintConfig,
   buildFromOxlintConfigFile,
 } from './build-from-oxlint-config.js';
@@ -43,4 +43,6 @@ export default {
     ...configByScope,
     ...configByCategory,
   },
+  buildFromOxlintConfig,
+  buildFromOxlintConfigFile,
 };