[WIP fixing CI] changing gazebo base to my fork for testing (#2034)

* changing gazebo base to my fork for testing

* adding buffer header per TF2 API changes

* moving header to header

Author: SteveMacenski

nav2_bt_navigator/include/nav2_bt_navigator/bt_navigator.hpp

@@ -28,6 +28,7 @@
 #include "rclcpp_action/rclcpp_action.hpp"
 #include "tf2_ros/transform_listener.h"
 #include "tf2_ros/create_timer_ros.h"
+#include "tf2_ros/buffer.h"
 
 namespace nav2_bt_navigator
 {

tools/underlay.repos

@@ -9,7 +9,7 @@ repositories:
     version: ros2
   ros-simulation/gazebo_ros_pkgs:
     type: git
-    url: https://github.com/ros-simulation/gazebo_ros_pkgs.git
+    url: https://github.com/stevemacenski/gazebo_ros_pkgs.git
     version: ros2
   ros-perception/image_common:
     type: git