message: mavlink_passthrough: initialize shared_ptr
diff: @@ -47,7 +47,7 @@ TEST_F(SitlTest, MavlinkPassthrough)
  }
  {
  - std::shared_ptr<unsigned> counter{0};
  + auto counter = std::make_shared<unsigned>(0);
  mavlink_passthrough->subscribe_message_async(
  MAVLINK_MSG_ID_HIGHRES_IMU, [counter](const mavlink_message_t& message) {
  