Fix ros2 compilation warnings

[alonfaraj]

About

Fix some -Wformat and -Wdeprecated warnings for ros2 wrapper.

How Has This Been Tested?

Build the wrapper and make sure warnings are gone.

Screenshots (if appropriate):

[zimmy87]

Thanks for submitting this PR @alonfaraj! I tested this locally and it's working for me, so I am moving ahead with merging.

[nikola-j]

Is using ros2 foxy supported? This breaks compatibility by causing the following error:

AirSim/ros2/src/airsim_ros_pkgs/src/airsim_ros_wrapper.cpp: In member function ‘sensor_msgs::msg::PointCloud2 AirsimROSWrapper::get_lidar_msg_from_airsim(const msr::airlib::LidarData&, const string&, const string&) const’:
AirSim/ros2/src/airsim_ros_pkgs/src/airsim_ros_wrapper.cpp:685:138: error: ‘from_nanoseconds’ is not a member of ‘rclcpp::Duration’
  685 |                 auto transformStampedENU = tf_buffer_->lookupTransform(AIRSIM_FRAME_ID, vehicle_name, rclcpp::Time(0), rclcpp::Duration::from_nanoseconds(1));
      |                                                                                                                                          ^~~~~~~~~~~~~~~~

It can be fixed by reverting that line.

[alonfaraj]

@nikola-j sorry about that.
airsim CI is running on ros2 galactic so this error wasn't caught.
The maintainer should decide whether the airsim should support foxy/galactic/humble, or just one, and modify the CI accordingly.
As an example, the old code compiles on foxy but doesn't on humble, AFAIK.
@zimmy87 what do you think?