chore(deps): update dependency eslint to v9

Author: renovate[bot]

package.json

@@ -13,7 +13,7 @@
   "devDependencies": {
     "documentation": "14.0.3",
     "concurrently": "8.2.2",
-    "eslint": "8.57.0",
+    "eslint": "9.9.1",
     "prettier": "2.8.8"
   },
   "engines": {

packages/qunit-dom/package.json

@@ -47,7 +47,7 @@
     "babel-plugin-transform-es2015-modules-commonjs": "6.26.2",
     "babel-preset-env": "1.7.0",
     "concurrently": "8.2.2",
-    "eslint": "8.57.0",
+    "eslint": "9.9.1",
     "eslint-config-prettier": "9.1.0",
     "eslint-plugin-prettier": "5.2.1",
     "lerna-changelog": "2.2.0",

packages/test-app/package.json

@@ -87,7 +87,7 @@
     "ember-source-channel-url": "3.0.0",
     "ember-template-lint": "6.0.0",
     "ember-try": "3.0.0",
-    "eslint": "8.57.0",
+    "eslint": "9.9.1",
     "eslint-config-prettier": "9.1.0",
     "eslint-plugin-ember": "12.2.0",
     "eslint-plugin-jest": "28.8.2",