Update robotiq_2f_85 to fix removed members.

`fake_sensor_commands` has been renamed to `mock_sensor_commands` and sim_isaac no longer exists and instead has has been replaced by sim_gazebo. See source here: https://github.com/Kinovarobotics/ros2_kortex/blob/b86f223249da004f6ef863c788ed4fce7157be24/kortex_description/grippers/robotiq_2f_85/urdf/robotiq_2f_85_macro.xacro

Author: srimanachanta

clearpath_manipulators_description/urdf/gripper/robotiq_2f_85.urdf.xacro

@@ -26,9 +26,11 @@
         include_ros2_control="${use_controllers}"
         com_port="${com_port}"
         use_fake_hardware="${use_fake_hardware}"
-        fake_sensor_commands="${fake_sensor_commands}"
-        sim_ignition="${sim_ignition}"
-        sim_isaac="${sim_isaac}">
+        mock_sensor_commands="${fake_sensor_commands}"
+        sim_gazebo="${sim_gazebo}"
+        sim_isaac="${sim_isaac}"
+        isaac_joint_commands="${isaac_joint_commands}"
+        isaac_joint_states="${isaac_joint_states}">
         <xacro:insert_block name="origin"/>
     </xacro:robotiq_gripper>