socksproto: impl Clone for Error.

crates/tor-socksproto/semver.md

@@ -1,2 +1,2 @@
 MODIFIED: Added SocksClientHandshake for client-side support.
-
+MODIFIED: Error implements Clone.

crates/tor-socksproto/src/err.rs

@@ -6,7 +6,7 @@ use thiserror::Error;
 use tor_error::{ErrorKind, HasKind};
 
 /// An error that occurs while negotiating a SOCKS handshake.
-#[derive(Error, Debug)]
+#[derive(Clone, Error, Debug)]
 #[non_exhaustive]
 pub enum Error {
     /// The SOCKS client didn't implement SOCKS correctly.