chore(deps): update dependency eslint to v9 (#3)

* chore(deps): update dependency eslint to v9

* chore: update eslint config

---------

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>
Co-authored-by: Romain Lanz <romain.lanz@pm.me>

Author: renovate[bot]

eslint.config.js

@@ -0,0 +1,5 @@
+import { configPkg } from '@adonisjs/eslint-config'
+
+export default configPkg({
+  ignores: ['coverage'],
+})

package.json

@@ -9,7 +9,7 @@
   "type": "module",
   "exports": {},
   "scripts": {
-    "lint": "eslint . --ext=.ts",
+    "lint": "eslint .",
     "pretest": "yarn lint",
     "quick:test": "yarn node --enable-source-maps --import=ts-node-maintained/register/esm bin/test.ts",
     "test": "c8 yarn quick:test",
@@ -19,7 +19,7 @@
     "@poppinss/utils": "^6.9.2"
   },
   "devDependencies": {
-    "@adonisjs/eslint-config": "^1.3.0",
+    "@adonisjs/eslint-config": "^2.0.0-beta.7",
     "@adonisjs/prettier-config": "^1.4.0",
     "@adonisjs/tsconfig": "^1.4.0",
     "@japa/assert": "^4.0.1",
@@ -28,7 +28,7 @@
     "@swc/core": "^1.10.9",
     "@types/node": "^22.8.1",
     "c8": "^10.1.3",
-    "eslint": "^8.57.1",
+    "eslint": "^9.19.0",
     "prettier": "^3.4.2",
     "release-it": "^18.1.2",
     "ts-node-maintained": "^10.9.5",
@@ -43,9 +43,6 @@
     "encryption",
     "crypto"
   ],
-  "eslintConfig": {
-    "extends": "@adonisjs/eslint-config/package"
-  },
   "prettier": "@adonisjs/prettier-config",
   "packageManager": "yarn@4.6.0+sha512.5383cc12567a95f1d668fbe762dfe0075c595b4bfff433be478dbbe24e05251a8e8c3eb992a986667c1d53b6c3a9c85b8398c35a960587fbd9fa3a0915406728"
 }