[RQT-JTC] limits from jtc controlled joints (backport #1146)

[mergify]

The further explanation of this issue is here #1131

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This is an automatic backport of pull request #1146 done by [Mergify](https://mergify.com).

[codecov]

Codecov Report

Attention: Patch coverage is 0% with 40 lines in your changes missing coverage. Please review.

Project coverage is 65.22%. Comparing base (fe71689) to head (066db65).
Report is 1 commits behind head on humble.

Files	Patch %	Lines
...t_joint_trajectory_controller/joint_limits_urdf.py	0.00%	38 Missing ⚠️
...ajectory_controller/joint_trajectory_controller.py	0.00%	2 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           humble    #1274      +/-   ##
==========================================
- Coverage   65.24%   65.22%   -0.02%     
==========================================
  Files         103      103              
  Lines       11433    11435       +2     
  Branches     7249     7253       +4     
==========================================
  Hits         7459     7459              
- Misses       1480     1482       +2     
  Partials     2494     2494              

Flag	Coverage Δ
unittests	65.22% <0.00%> (-0.02%)	⬇️

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Files	Coverage Δ
...ajectory_controller/joint_trajectory_controller.py	0.00% <0.00%> (ø)
...t_joint_trajectory_controller/joint_limits_urdf.py	0.00% <0.00%> (ø)