Fix deprecated hardware_interface API

[christophfroehlich]

See ros-controls/ros2_control#2323
needed for ros-controls/ros2_control#2589

Please release it to kilted and rolling, thanks :)
Note: This API is not available on humble.

[nbbrooks]

Closing and reopening to try and get Workflow approval button to show up.

[christophfroehlich]

robotiq_description: Cannot locate rosdep definition for [gripper_controllers]

gripper_controllers were removed from Kilted on.

[nbbrooks]

I'm working on addressing that in #103 but there is a rosdep error in CI trying to install ros2-controllers #103 (comment)

[codecov]

Codecov Report

❌ Patch coverage is 25.00000% with 3 lines in your changes missing coverage. Please review.
✅ Project coverage is 40.26%. Comparing base (743d20f) to head (b8a8a2f).
⚠️ Report is 26 commits behind head on main.

Files with missing lines	Patch %	Lines
..._controllers/src/robotiq_activation_controller.cpp	0.00%	2 Missing ⚠️
robotiq_driver/src/hardware_interface.cpp	50.00%	0 Missing and 1 partial ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##            main      #98       +/-   ##
==========================================
+ Coverage   0.00%   40.26%   +40.26%     
==========================================
  Files          5       20       +15     
  Lines        352      524      +172     
  Branches       0       33       +33     
==========================================
+ Hits           0      211      +211     
+ Misses       352      308       -44     
- Partials       0        5        +5     

Flag	Coverage Δ
unittests	40.26% <25.00%> (+40.26%)	⬆️

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