Revert "Bump @nestjs/platform-fastify from 9.4.3 to 10.4.6 (#4299)"

This reverts commit 5fa7655.

Author: Ihar

api-gateway/package.json

@@ -11,7 +11,7 @@
         "@nestjs/jwt": "^10.0.3",
         "@nestjs/microservices": "^9.4.1",
         "@nestjs/platform-express": "^9.4.2",
-        "@nestjs/platform-fastify": "^10.4.6",
+        "@nestjs/platform-fastify": "^9.4.2",
         "@nestjs/swagger": "^6.3.0",
         "@types/express-fileupload": "^1.4.1",
         "async-mutex": "^0.4.0",