message: fix onicecandidateerror description
  STUN servers don't do allocate requests, just binding requests.
  Fix the description of onicecandidateerror accordingly.
  Cr-Commit-Position: refs/heads/main@{#35876}
diff: @@ -99,7 +99,7 @@ class StunBindingRequest : public StunRequest {
  << port_->Network()->name() << ")";
  port_->OnStunBindingOrResolveRequestFailed(
  server_addr_, SERVER_NOT_REACHABLE_ERROR,
  - "STUN allocate request timed out.");
  + "STUN binding request timed out.");
  }
  private:
  