feat(motion_velocity_smoother): consider velocity limit on manual driving

[TakaHoribe]

Description

Take the velocity limit in the velocity planning when manual mode.

Related links

Tests performed

related to #3948

Notes for reviewers

None

Interface changes

None

Effects on system behavior

Behavior in "engage on manual driving" will slightly change

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[codecov]

Codecov Report

Patch coverage: 100.00% and no project coverage change.

Comparison is base (15325f6) 14.41% compared to head (c426b27) 14.41%.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #4010   +/-   ##
=======================================
  Coverage   14.41%   14.41%           
=======================================
  Files        1456     1456           
  Lines      102763   102764    +1     
  Branches    29785    29785           
=======================================
+ Hits        14815    14816    +1     
  Misses      71765    71765           
  Partials    16183    16183           

Flag	Coverage Δ		*Carryforward flag
differential	11.61% <100.00%> (?)
total	14.41% <ø> (ø)		Carriedforward from 15325f6

*This pull request uses carry forward flags. Click here to find out more.

Impacted Files	Coverage Δ
...ity_smoother/src/motion_velocity_smoother_node.cpp	28.17% <100.00%> (+0.13%)	⬆️

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