fix(proc-macros): some types are missing when using proc-macros but only the server-core feature is enabled

[koushiro]

Cargo.toml:

jsonrpsee = { version = "0.22.4", features = ["client-core", "server-core", "macros"] }

Error:

error[E0433]: failed to resolve: could not find `RpcModule` in `jsonrpsee`
  --> client/rpc/api/src/debug.rs:25:1
   |
25 | #[rpc(client, server, namespace = "debug")]
   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ could not find `RpcModule` in `jsonrpsee`
   |
   = note: this error originates in the attribute macro `rpc` (in Nightly builds, run with -Z macro-backtrace for more info)
error[E0433]: failed to resolve: could not find `ResponsePayload` in `jsonrpsee`
  --> client/rpc/api/src/debug.rs:25:1
   |
25 | #[rpc(client, server, namespace = "debug")]
   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ could not find `ResponsePayload` in `jsonrpsee`

[koushiro]

@niklasad1 PTAL