refactor(autoware_lanelet2_extension): add USE_SCOPED_HEADER_INSTALL_DIR

[vish0012]

Description

This PR adds USE_SCOPED_HEADER_INSTALL_DIR to existing ament_auto_package() calls in autoware_lanelet2_extension.

Updated packages:

• autoware_lanelet2_extension
• autoware_lanelet2_extension_python

How was this PR tested?

Built the target packages locally:

colcon build --base-paths ~/autoware_scoped_headers/autoware/src \
  --symlink-install \
  --cmake-args -DCMAKE_BUILD_TYPE=Release \
  --packages-select \
  autoware_lanelet2_extension \
  autoware_lanelet2_extension_python

Notes for reviewers

This is part of the follow-up work after adding USE_SCOPED_HEADER_INSTALL_DIR support to autoware_cmake.

Interface changes

None.

Effects on system behavior

No functional behavior change. This updates the package macro options for the scoped header installation migration.

[github-actions]

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 22.72%. Comparing base (5a32788) to head (c3bc5e2).
⚠️ Report is 48 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #105      +/-   ##
==========================================
+ Coverage   16.31%   22.72%   +6.40%     
==========================================
  Files          42       46       +4     
  Lines        3089     3085       -4     
  Branches     1397     1707     +310     
==========================================
+ Hits          504      701     +197     
+ Misses       2490     2261     -229     
- Partials       95      123      +28     

Flag	Coverage Δ
differential	22.72% <ø> (+5.97%)	⬆️
total	?

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[soblin]

Need TIER IV Evaulator result or autoware docker image build result