refactor: improve request serde in version middleware

[apoorvsadana]

Is there an existing issue?

• I have searched the existing issues

Motivation

No response

Request

Our current implementation of RPC request handling in the add_rpc_version_to_method in the version middleware is inefficient due to the use of serde_json::Value for parsing. This approach leads to unnecessary heap allocations and performance overhead. We need to refactor this process to improve efficiency and reduce memory usage.

Solution

Refactor the request handling to parse directly into concrete structs instead of using serde_json::Value.

Thanks to the elaborate comment by @cchudant here

Are you willing to help with this request?

Yes!