chore: Prepare for Rust edition bump to 2024 (without autofix) (#27791)

Successor to #27779 - in this PR I've applied changes manually, without
futzing with if let lifetimes at all.

Release Notes:

- N/A

crates/rpc/src/proto_client.rs

@@ -185,7 +185,7 @@ impl AnyProtoClient {
     pub fn request<T: RequestMessage>(
         &self,
         request: T,
-    ) -> impl Future<Output = anyhow::Result<T::Response>> {
+    ) -> impl Future<Output = anyhow::Result<T::Response>> + use<T> {
         let envelope = request.into_envelope(0, None, None);
         let response = self.0.request(envelope, T::NAME);
         async move {