Depend on ros_environment where needed

[wentasah]

Recent commit f4e9860 ("Update dependency declarations for target_link_libraries", 2025-11-04) introduced dependency on ROS_DISTRO environment variable. Such an variable is only set if ros_environment package is available, but package.xml doesn't mention ros_environment as dependency.

This can lead to the following error when building the package without ros_environment (e.g. when using the Nix package manager):

-- Found pcl_conversions: 2.4.5 (/.../ros-humble-pcl-conversions-2.4.5-r2/share/pcl_conversions/cmake)
...
[ 50%] Building CXX object CMakeFiles/off_highway_general_purpose_radar.dir/src/receiver.cpp.o
/build/off_highway_sensor_drivers-release-release-humble-off_highway_general_purpose_radar-0.10.0-1/src/receiver.cpp:20:10:
fatal error: pcl_conversions/pcl_conversions.h: No such file or directory
   20 | #include "pcl_conversions/pcl_conversions.h"
      |          ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

This commit adds dependency on ros_environment to packages where it is needed.

[Timple]

Buildfarm is not compiling the package because of this.

Can this be merged and a new (bloom) release be created?

[MCFurry]

This would be great to get in, currently the latest released version (1.1.0) is not in the apt-repositories because the buildfarm fails on exactly this.

[Timple]

Thank you for merging @Gabriela-AdrianaLapuste
This is currently a regression for the next sync: https://discourse.openrobotics.org/t/preparing-for-jazzy-sync-and-patch-release-2026-01-22/51865

If you manage to put out a bloom release today or tomorrow it might make it before the next sync.