fix cargo clippy complains

crates/web-plugins/didcomm-messaging/src/error.rs

@@ -14,7 +14,7 @@ pub(crate) enum Error {
     #[error("unsupported content-type, only accept application/didcomm-encrypted+json")]
     NotDidcommEncryptedPayload,
     #[error("Could not unpack message")]
-    UnpackingError,
+    CouldNotUnpack,
 }
 
 impl Error {

crates/web-plugins/didcomm-messaging/src/midlw.rs

@@ -121,9 +121,9 @@ async fn unpack_payload(
 
     let (plain_message, metadata) = res.map_err(|err| {
         error!("Failed to unpack message: {}, {}", err.kind(), err.source);
-        let response = (StatusCode::BAD_REQUEST, Error::UnpackingError.json());
+        let response = (StatusCode::BAD_REQUEST, Error::CouldNotUnpack.json());
 
-        return response.into_response();
+        response.into_response()
     })?;
 
     if !metadata.encrypted {