Declare missing parameters for PID (backport #443)

[mergify]

Resolves #442

I fixed the tests, we haven't tested all the parameters with initialize_from_ros_parameters

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This is an automatic backport of pull request #443 done by Mergify.

[codecov-commenter]

Codecov Report

❌ Patch coverage is 92.30769% with 1 line in your changes missing coverage. Please review.
✅ Project coverage is 76.31%. Comparing base (862d687) to head (1d59cce).

Files with missing lines	Patch %	Lines
control_toolbox/src/pid_ros.cpp	88.88%	0 Missing and 1 partial ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##            jazzy     #445      +/-   ##
==========================================
+ Coverage   76.23%   76.31%   +0.07%     
==========================================
  Files          29       29              
  Lines        2066     2077      +11     
  Branches      125      129       +4     
==========================================
+ Hits         1575     1585      +10     
  Misses        420      420              
- Partials       71       72       +1     

Flag	Coverage Δ
unittests	76.31% <92.30%> (+0.07%)	⬆️

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Files with missing lines	Coverage Δ
control_toolbox/test/pid_ros_parameters_tests.cpp	100.00% <100.00%> (ø)
control_toolbox/src/pid_ros.cpp	59.24% <88.88%> (+0.61%)	⬆️

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