fix(snownet): notify remote of invalidated relay candidate (#5303)

When migrating to new relays, we need to notify the remote of our
invalidated relay candidates and not just invalidate them locally.

Related: #5283.

rust/connlib/snownet/src/node.rs

@@ -514,7 +514,7 @@ where
                     .current_candidates()
                     .filter(|c| c.kind() == CandidateKind::Relayed)
                 {
-                    agent.invalidate_candidate(&candidate);
+                    remove_local_candidate(id, agent, &candidate, &mut self.pending_events);
                 }
             }
         }