Revert "chore: upgrade dependencies"

This reverts commit 25d2ca4.

Author: openscript

apps/backend/package.json

@@ -48,7 +48,7 @@
     "class-validator": "^0.14.1",
     "csv-stringify": "^6.5.2",
     "date-fns": "^4.1.0",
-    "fastify": "5.3.2",
+    "fastify": "5.3.0",
     "hash-wasm": "^4.12.0",
     "reflect-metadata": "^0.2.2",
     "rxjs": "^7.8.2"