Update devDependencies

Author: renovate[bot]

package.json

@@ -19,9 +19,9 @@
   },
   "devDependencies": {
     "@glint/core": "^1.2.1",
-    "concurrently": "^8.2.0",
+    "concurrently": "^9.0.0",
     "prettier": "^3.0.3",
-    "prettier-plugin-ember-template-tag": "^1.1.0",
+    "prettier-plugin-ember-template-tag": "^2.0.0",
     "release-plan": "^0.16.0"
   },
   "packageManager": "pnpm@10.15.0",