chore: update playground dependencies

Author: boazpoolman

playground/package.json

@@ -16,9 +16,9 @@
     "supertest": "^6.3.3"
   },
   "dependencies": {
-    "@strapi/strapi": "5.0.0-beta.2",
-    "@strapi/plugin-users-permissions": "5.0.0-beta.2",
-    "@strapi/plugin-cloud": "5.0.0-beta.2",
+    "@strapi/strapi": "5.0.0-beta.8",
+    "@strapi/plugin-users-permissions": "5.0.0-beta.8",
+    "@strapi/plugin-cloud": "5.0.0-beta.8",
     "better-sqlite3": "9.4.3",
     "react": "^18.0.0",
     "react-dom": "^18.0.0",