Resolve clippy error

This was resolved on the processor branch yet not on develop.

substrate/node/src/cli.rs

@@ -9,6 +9,7 @@ pub struct Cli {
   pub run: RunCmd,
 }
 
+#[allow(clippy::large_enum_variant)]
 #[derive(Debug, clap::Subcommand)]
 pub enum Subcommand {
   // Key management CLI utilities