Fix release notes: reference PR #9693 for reconnect fix

Author: rishika0212

packages/devtools_app/release_notes/NEXT_RELEASE_NOTES.md

@@ -21,7 +21,8 @@ TODO: Remove this section if there are not any updates.
 
 - Added a "Reconnect" button to the disconnected overlay in embedded/IDE mode,
   and fixed reconnection to restore the VM service connection after machine
-  sleep/wake (#9683).
+  sleep/wake. [#9693](https://github.com/flutter/devtools/pull/9693)
+  (fixes #9683).
 
 ## Performance updates