message: Don't log PW mismatch messages in production
  The STUN message about mismatched passwords is not interesting.
  Only emit it in VERBOSE mode when DCHECK is on.
  Cr-Commit-Position: refs/heads/main@{#38938}
diff: @@ -483,7 +483,8 @@ void Connection::OnReadPacket(const char* data,
  case StunMessage::IntegrityStatus::kIntegrityOk:
  if (remote_candidate().password() != msg->password()) {
  // TODO(bugs.webrtc.org/14578): Do a better thing
  - RTC_LOG(LS_INFO) << "STUN code error - Different passwords, old = "
  + RTC_DLOG(LS_VERBOSE)
  + << "STUN code error - Different passwords, old = "
  << absl::CHexEscape(msg->password()) << ", new "
  << absl::CHexEscape(remote_candidate().password());
  }
  