fix(run_out): place of clearing points

[TomohitoAndo]

Description

Detected points are sometimes unintentionally deleted because the place of obstacle_points_map_filtered_.clear() was inappropriate.

I confirmed this works with Planning Simulator.

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[codecov]

Codecov Report

Patch and project coverage have no change.

Comparison is base (b2a43c7) 11.94% compared to head (956219d) 11.94%.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #3021   +/-   ##
=======================================
  Coverage   11.94%   11.94%           
=======================================
  Files        1321     1321           
  Lines       91907    91907           
  Branches    24502    24503    +1     
=======================================
  Hits        10976    10976           
  Misses      69573    69573           
  Partials    11358    11358           

Flag	Coverage Δ		*Carryforward flag
differential	3.91% <0.00%> (?)
total	11.94% <ø> (+<0.01%)	⬆️	Carriedforward from b2a43c7

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

Impacted Files	Coverage Δ
...nner/src/scene_module/run_out/dynamic_obstacle.cpp	0.00% <0.00%> (ø)

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[mkuri]

Memo

• If the input point cloud is not empty and the point cloud is being processed, the previous point cloud is used for the planning callback.
• If the input point cloud is empty, it is cleared and the function exits to reduce processing.

[mkuri]

LGTM