chore: 🤖 update ember-feature-flags and tracked-built-ins (#2903)

* chore: 🤖 update ember-feature-flags and tracked-built-ins

* chore: 🤖 update glimmer/component@2.0.0 for ember-feature-flag

* chore: 🤖 test ember-feature-flag update

* chore: 🤖 test ember-feature-flag@6.0.0

* refactor: 💡 undo test commit changes

addons/api/package.json

@@ -35,7 +35,7 @@
     "ember-cli-mirage": "^3.0.3",
     "ember-data": "~5.3.12",
     "miragejs": "^0.1.48",
-    "tracked-built-ins": "^3.1.1"
+    "tracked-built-ins": "^4.0.0"
   },
   "devDependencies": {
     "@babel/eslint-parser": "^7.25.1",