[APG-2626] orbbec_camera: port to ROS L (lyrical)

[bmagyar]

Ports orbbec_camera to build on ROS L (lyrical / Ubuntu 26.04), kept jazzy-compatible throughout. Validated with a colcon build on lyrical.

• Replace ament_target_dependencies (removed in lyrical) with modern target_link_libraries (pkg::pkg / ${pkg_TARGETS}); drop image_publisher from link targets and declare message_filters explicitly.
• Migrate .h→.hpp headers for tf2, tf2_ros, cv_bridge, message_filters (present on both jazzy and lyrical).
• Guard the message_filters Subscriber QoS API (removed rmw_qos_profile_t overload → rclcpp::QoS) on RCLCPP_VERSION_GTE(32,0,0) so both distros compile.
• -Wno-error=deprecated-declarations: lyrical deprecates the remaining rmw_qos_profile_t QoS overloads this driver uses (image_transport, rclcpp); keep them warnings, not errors. (Full QoS modernization left as a follow-up.)
• Drop an unused image_publisher/image_publisher.hpp include.