chore: 🤖 tweak oidc attributes serialization

addons/api/package.json

@@ -28,7 +28,7 @@
     "ember-cli-htmlbars": "^5.3.1",
     "ember-cli-mirage": "^1.1.8",
     "ember-data": "^3.20.0",
-    "ember-data-model-fragments": "5.0.0-beta.0",
+    "ember-data-model-fragments": "5.0.0-beta.2",
     "ember-fetch": "^8.0.1"
   },
   "devDependencies": {