Add new executor spin_until_complete API

Co-authored-by: stevemacenski <[email protected]>
Signed-off-by: stevemacenski <[email protected]>
Signed-off-by: Christophe Bedard <[email protected]>

Author: christophebedard-apexai

source/Releases/Release-Jazzy-Jalisco.rst

@@ -49,6 +49,14 @@ New type support helper for services ``rclcpp::get_service_typesupport_handle``
 
 See https://github.com/ros2/rclcpp/pull/2209 for more details.
 
+New executor ``spin_until_complete`` interface
+""""""""""""""""""""""""""""""""""""""""""""""
+
+``spin_until_complete`` was added to spin on arbitrary callable conditions.
+It goes alongside ``spin_until_future_complete``, which exclusively spins on futures.
+
+See https://github.com/ros2/rclcpp/pull/2475 for more details.
+
 ``ros2cli``
 ^^^^^^^^^^^