Switch to ESLint flat config internally (#2018)

Author: bmish

.eslint-doc-generatorrc.js

@@ -1,8 +1,8 @@
 /** @type {import('eslint-doc-generator').GenerateOptions} */
 module.exports = {
   configEmoji: [
-    ["recommended-gjs", "![gjs logo](/docs/svgs/gjs.svg)"],
-    ["recommended-gts", "![gts logo](/docs/svgs/gts.svg)"]
+    ['recommended-gjs', '![gjs logo](/docs/svgs/gjs.svg)'],
+    ['recommended-gts', '![gts logo](/docs/svgs/gts.svg)'],
   ],
   ruleDocSectionInclude: ['Examples'],
   ruleDocTitleFormat: 'prefix-name',