Update devDependencies

docs-app/package.json

@@ -31,7 +31,7 @@
     "@babel/eslint-parser": "^7.23.3",
     "@babel/plugin-proposal-decorators": "^7.23.6",
     "@ember/optional-features": "^2.0.0",
-    "@ember/string": "^3.1.1",
+    "@ember/string": "^4.0.0",
     "@ember/test-helpers": "^3.3.0",
     "@ember/test-waiters": "^3.1.0",
     "@embroider/broccoli-side-watch": "0.0.2-unstable.ba9fd29",
@@ -68,7 +68,7 @@
     "ember-template-imports": "^4.0.0",
     "ember-template-lint": "^6.0.0",
     "ember-welcome-page": "^7.0.2",
-    "eslint": "^8.55.0",
+    "eslint": "^9.0.0",
     "eslint-config-prettier": "^9.1.0",
     "eslint-plugin-ember": "^12.0.0",
     "eslint-plugin-n": "^17.3.1",

package.json

@@ -133,17 +133,17 @@
     "ember-repl": "^4.1.1",
     "ember-resources": "^7.0.0",
     "ember-source": "~5.9.0",
-    "eslint": "^8.56.0",
+    "eslint": "^9.0.0",
     "pnpm-sync-dependencies-meta-injected": "^0.0.14",
     "prettier": "^3.1.1",
     "publint": "^0.2.7",
     "reactiveweb": "^1.2.1",
     "release-plan": "^0.9.0",
     "tracked-built-ins": "^3.3.0",
-    "turbo": "^1.13.3",
+    "turbo": "^2.0.0",
     "typescript": "^5.3.3",
     "vite": "^5.3.2",
-    "vitest": "^1.5.2",
+    "vitest": "^2.0.0",
     "webpack": "^5.90.3"
   },
   "engines": {