misc: add comment

Signed-off-by: Anthony Griffon <[email protected]>

Author: Miaxos

app/roster/src/application/server/handle.rs

@@ -1,4 +1,6 @@
 #![allow(clippy::await_holding_refcell_ref)]
+// TODO(@miaxos): Remove it
+
 use std::cell::RefCell;
 use std::os::fd::IntoRawFd;
 use std::rc::Rc;