feat(jazzy): add ament_index_cpp as dependency

[KYabuuchi]

PR Type

• New Feature

Related Links

• fix: add missing ament_index_cpp dependency autowarefoundation/autoware_universe#11875

Description

Add ament_index_cpp as an explicit build/run dependency in package.xml.

This is required for ROS 2 Jazzy compatibility.
sensor_trigger.cpp uses ament_index_cpp::get_package_share_directory(). Without declaring this dependency, the build fails with:

/ros_ws/src/sensor_trigger/src/sensor_trigger.cpp:17:10: fatal error: ament_index_cpp/get_package_share_directory.hpp: No such file or directory
   17 | #include <ament_index_cpp/get_package_share_directory.hpp>
      |          ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Review Procedure

Humble test ☑️

mkdir ros_ws/src -p
cd ros_ws/src
git clone git@github.com:tier4/sensor_trigger.git -b feat/use_libgpiod_jazzy_migration
cd ..
docker run -it --rm -v(pwd):/ros_ws -w /ros_ws ros:humble
sudo apt update
rosdep update
rosdep install -y --from-paths src --ignore-src --rosdistro $ROS_DISTRO

colcon build --symlink-install --cmake-args -DCMAKE_BUILD_TYPE=Release

Jazzy test ☑️

mkdir ros_ws/src -p
cd ros_ws/src
git clone git@github.com:tier4/sensor_trigger.git -b feat/use_libgpiod_jazzy_migration
cd ..
docker run -it --rm -v(pwd):/ros_ws -w /ros_ws ros:jazzy
sudo apt update
rosdep update
rosdep install -y --from-paths src --ignore-src --rosdistro $ROS_DISTRO

colcon build --symlink-install --cmake-args -DCMAKE_BUILD_TYPE=Release

Remarks

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• Commits are properly organized and messages are according to the guideline
• (Optional) Unit tests have been written for new behavior
• PR title describes the changes

Post-Review Checklist for the PR Author

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• All open points are addressed and tracked via issues or tickets

CI Checks

• Build and test for PR: Required to pass before the merge.