Input validation not working in Graphql Federation

### Version Information

Server Version: 2.35.1
CLI Version (for CLI related issue): 2.35.1

### Environment

OSS

### What is the current behaviour?

With Graphql Federation enabled, request passed from the graphql gateway with a input which contains fields with [input validation](https://hasura.io/docs/latest/schema/postgres/input-validations/) enabled, Hasura Engine will somehow ignore the validation field and throw "missing argument for xxx at element yyy"

### What is the expected behaviour?

Hasura can performs validation normally with federation enabled

### How to reproduce the issue?

1. enable graphql federation in hasura and setup a graphql gateway
2. enable input validation
3. make a mutation graphql request

### Any possible solutions/workarounds you're aware of?

the only solution for me now is turn off the input validation, replace it by checking in database

Start by reproducing the mutation through a GraphQL gateway with GraphQL Federation and Hasura input validation enabled, using the reported Hasura and CLI version 2.35.1. Trace the federation request path and input-validation handling to identify where validation is bypassed and the missing-argument error is produced; done means validation works normally for the federated mutation.

Written by the indexing model from the issue text.