add Sync + Send + 'static to Box<dyn Error> bound (#7450)

Co-authored-by: Bernhard Schuster <bernhard@parity.io>

substrate/client/cli/src/error.rs

@@ -49,7 +49,7 @@ pub enum Error {
 	InvalidListenMultiaddress,
 	/// Application specific error chain sequence forwarder.
 	#[error(transparent)]
-	Application(#[from] Box<dyn std::error::Error>),
+	Application(#[from] Box<dyn std::error::Error + Send + Sync + 'static>),
 	/// URI error.
 	#[error("Invalid URI; expecting either a secret URI or a public URI.")]
 	InvalidUri(crypto::PublicError),