Find/replace deprecated spawner.py

[AndyZe]

Fix this warning:

[ros2 run controller_manager spawner.py panda_arm_controller-7] /home/andy/ws_ros2/install/controller_manager/lib/controller_manager/spawner.py:186: DeprecationWarning: 'spawner.py' is deprecated, please use 'spawner' (without .py extension)

[vatanaksoytezer]

Seems, servo tests strike back consistently with this PR for some reason

[vatanaksoytezer]

The error: [ros2 run controller_manager spawner panda_arm_controller-3] No executable found so spawner might not be available in the tag of ros2 control we are using now.

[henningkayser]

This depends on #711 to succeed CI

[henningkayser]

This depends on #711 to succeed CI

Also, we need rolling to be synced first. Currently, ros2_control is still on 0.8.0 there as well (which I haven't noticed before). Maybe we should hold off #711 and wait until both galactic and rolling are synced and just remove the entries from the repos file.

[codecov]

Codecov Report

Merging #737 (3643269) into main (5a27d2f) will decrease coverage by 0.01%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##             main     #737      +/-   ##
==========================================
- Coverage   54.25%   54.24%   -0.00%     
==========================================
  Files         195      195              
  Lines       20290    20290              
==========================================
- Hits        11006    11005       -1     
- Misses       9284     9285       +1     

Impacted Files	Coverage Δ
...nning_scene_monitor/src/planning_scene_monitor.cpp	45.31% <0.00%> (-0.50%)	⬇️
...dl_kinematics_plugin/src/kdl_kinematics_plugin.cpp	75.85% <0.00%> (+1.14%)	⬆️

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