[CM] Handle other exceptions while loading the controller plugin (backport #1731)

[mergify]

As of now, we are only handling the exceptions of the pluginlib::CreateClassException there are many other exceptions defined by the pluginlib, that might be also interesting to catch. I'm using std::exception as the main PluginlibException is derived from std::runtime_error and which is derived from std::exception, and this gives us way to be generic (https://github.com/ros/pluginlib/blob/jazzy/pluginlib/include/pluginlib/exceptions.hpp#L43)

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This is an automatic backport of pull request #1731 done by Mergify.

[codecov]

Codecov Report

Attention: Patch coverage is 0% with 4 lines in your changes missing coverage. Please review.

Project coverage is 62.27%. Comparing base (5bf0da5) to head (7e91913).
Report is 2 commits behind head on humble.

Files with missing lines	Patch %	Lines
controller_manager/src/controller_manager.cpp	0.00%	4 Missing ⚠️

Additional details and impacted files

@@           Coverage Diff           @@
##           humble    #1733   +/-   ##
=======================================
  Coverage   62.27%   62.27%           
=======================================
  Files         105      105           
  Lines       11327    11330    +3     
  Branches     7926     7927    +1     
=======================================
+ Hits         7054     7056    +2     
- Misses        815      816    +1     
  Partials     3458     3458           

Flag	Coverage Δ
unittests	62.27% <0.00%> (+<0.01%)	⬆️

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Files with missing lines	Coverage Δ
controller_manager/src/controller_manager.cpp	66.30% <0.00%> (+<0.01%)	⬆️