chore(eslint)!: migrate all eslint configs to v9 (#974)

* chore(eslint)!: migrate eslint-config-godaddy to v9

BREAKING CHANGE: This removes v8 from being supported and moves to flat config

* chore(flow)!: remove flow config as no longer supported

* chore(eslint)!: migrate godaddy-react to v9

BREAKING CHANGE: This removes eslint@v8 from support and moves to flat config

* chore(eslint)!: migrate godaddy-react-typescript to v9

BREAKING CHANGE: This removes eslint@v8 from support and moves to flat config

* chore(eslint)!: migrate godaddy-typescript to v9

BREAKING CHANGE: This removes eslint@v8 from support and moves to flat config

* chore(changeset) add changeset for major bump

* chore: address comments

* doc: update READMEs

* chore: update changsets despcription

* chore(pkg): update package.jsons

Author: rxmarbles

.changeset/blue-rats-notice.md

@@ -0,0 +1,10 @@
+---
+"eslint-config-godaddy-react-typescript": major
+"eslint-config-godaddy-typescript": major
+"eslint-config-godaddy-react": major
+"eslint-config-godaddy": major
+---
+
+chore(eslint)!: migrate all eslint configs to eslint@v9
+
+BREAKING CHANGE: removes v8 support and transistions configs to flat config. Also these packages are now `type:module`

.eslintrc.js renamed to eslint.config.js

@@ -1,5 +1,7 @@
-module.exports = {
-  extends: './packages/eslint-config-godaddy/index.js',
+import gdConfig from "./packages/eslint-config-godaddy/index.js";
+
+export default {
+  ...gdConfig,
   rules: {
     //
     // This is used for both ES5 and ES6 config filesso we simply

package-lock.json

@@ -3,6 +3,7 @@
   "version": "6.0.0",
   "private": true,
   "description": "The approach to JavaScript at GoDaddy. We think it's pretty decent.",
+  "type": "module",
   "engines": {
     "node": ">=22",
     "npm": ">=10"
@@ -47,16 +48,20 @@
     "godaddy-js-style-eslint": "./bin/eslint"
   },
   "devDependencies": {
-    "@changesets/cli": "^2.27.9",
-    "eslint": "^8.57.1",
-    "eslint-plugin-json": "^3.1.0",
+    "@changesets/cli": "^2.27.11",
+    "@eslint/eslintrc": "^3.2.0",
+    "@eslint/js": "^9.17.0",
+    "@typescript-eslint/eslint-plugin": "^8.18.1",
+    "@typescript-eslint/parser": "^8.18.1",
+    "eslint": "^9.17.0",
+    "eslint-plugin-json": "^4.0.1",
     "eslint-plugin-jsx-a11y": "^6.10.2",
     "eslint-plugin-mocha": "^10.5.0",
     "eslint-plugin-react": "^7.37.2",
-    "react": "^17.0.2",
-    "rimraf": "^3.0.2",
+    "react": "^19.0.0",
+    "rimraf": "^6.0.1",
     "turbo": "^1.13.4",
-    "typescript": "^4.9.5"
+    "typescript": "^5.7.2"
   },
   "workspaces": [
     "packages/*"