Update devDependencies

docs-app/package.json

@@ -57,7 +57,7 @@
     "@tsconfig/ember": "^3.0.3",
     "@types/qunit": "^2.19.10",
     "broccoli-asset-rev": "^3.0.0",
-    "concurrently": "^8.2.2",
+    "concurrently": "^9.0.0",
     "decorator-transforms": "^2.2.2",
     "ember-auto-import": "^2.7.0",
     "ember-cli": "^5.12.0",
@@ -67,7 +67,7 @@
     "ember-cli-dependency-checker": "^3.3.2",
     "ember-cli-htmlbars": "^6.3.0",
     "ember-cli-inject-live-reload": "^2.1.0",
-    "ember-load-initializers": "^2.1.2",
+    "ember-load-initializers": "^3.0.0",
     "ember-modifier": "^4.2.0",
     "ember-page-title": "^8.1.0",
     "ember-primitives": "^0.25.0",
@@ -78,7 +78,7 @@
     "ember-template-imports": "^4.0.0",
     "ember-template-lint": "^6.0.0",
     "ember-welcome-page": "^7.0.2",
-    "eslint": "^8.0.0",
+    "eslint": "^9.0.0",
     "eslint-config-prettier": "^9.1.0",
     "eslint-plugin-ember": "^12.0.0",
     "eslint-plugin-n": "^17.3.1",

package.json

@@ -145,17 +145,17 @@
     "@types/qunit": "^2.19.10",
     "@types/rsvp": "^4.0.9",
     "@types/send": "^0.17.4",
-    "@typescript-eslint/eslint-plugin": "^7.7.1",
-    "@typescript-eslint/parser": "^7.7.1",
+    "@typescript-eslint/eslint-plugin": "^8.0.0",
+    "@typescript-eslint/parser": "^8.0.0",
     "babel-plugin-ember-template-compilation": "^2.3.0",
-    "concurrently": "^8.2.2",
+    "concurrently": "^9.0.0",
     "ember-modifier": "^4.2.0",
     "ember-primitives": "^0.21.0",
     "ember-qunit": "^8.0.2",
     "ember-resources": "^7.0.0",
     "ember-source": "^5.12.0",
     "ember-template-lint": "^6.0.0",
-    "eslint": "^8.0.0",
+    "eslint": "^9.0.0",
     "eslint-config-prettier": "^9.1.0",
     "eslint-plugin-ember": "^12.0.0",
     "eslint-plugin-n": "^17.3.1",