Introduce RpcParams in sc-cli (paritytech#5601)

This PR is a pure refactoring by consolidating all the RPC related
parameters into a dedicated `RpcParams` struct, allowing us at subcoin
to build a custom run cmd without the need to duplicate code.

---------

Co-authored-by: Bastian Köcher <git@kchr.de>
Co-authored-by: Niklas Adolfsson <niklasadolfsson1@gmail.com>

cumulus/client/cli/src/lib.rs

@@ -96,7 +96,7 @@ impl PurgeChainCmd {
 				Some('y') | Some('Y') => {},
 				_ => {
 					println!("Aborted");
-					return Ok(())
+					return Ok(());
 				},
 			}
 		}
@@ -432,19 +432,19 @@ impl sc_cli::CliConfiguration for NormalizedRunCmd {
 	}
 
 	fn rpc_max_request_size(&self) -> sc_cli::Result<u32> {
-		Ok(self.base.rpc_max_request_size)
+		self.base.rpc_max_request_size()
 	}
 
 	fn rpc_max_response_size(&self) -> sc_cli::Result<u32> {
-		Ok(self.base.rpc_max_response_size)
+		self.base.rpc_max_response_size()
 	}
 
 	fn rpc_max_subscriptions_per_connection(&self) -> sc_cli::Result<u32> {
-		Ok(self.base.rpc_max_subscriptions_per_connection)
+		self.base.rpc_max_subscriptions_per_connection()
 	}
 
 	fn rpc_buffer_capacity_per_connection(&self) -> sc_cli::Result<u32> {
-		Ok(self.base.rpc_message_buffer_capacity_per_connection)
+		Ok(self.base.rpc_params.rpc_message_buffer_capacity_per_connection)
 	}
 
 	fn rpc_batch_config(&self) -> sc_cli::Result<RpcBatchRequestConfig> {

prdoc/pr_5601.prdoc

@@ -0,0 +1,12 @@
+title: Introduce `RpcParams` in sc-cli
+
+doc:
+  - audience: Node Dev
+    description: |
+      Refactors and consolidates all RPC-related parameters in the run command into a dedicated `RpcParams` struct. This change allows downstream users to build custom run command without duplicating code.
+
+crates:
+  - name: cumulus-client-cli
+    bump: none
+  - name: sc-cli
+    bump: major