4.0.2-humble

What's Changed

• Fix parameter change event by @Acuadros95 in #310
• Drop build dependency on std_msgs (backport #314) by @mergify in #315
• Updated ros-tooling versions (backport #318) by @mergify in #320
• removed build status for Galactic distribution in README (backport #321) by @mergify in #322
• Update documentation about number_of_handles (backport #326) by @mergify in #327
• Example real-time concurreny timer and subscription (backport #329) by @mergify in #330
• updated rclc_examples (backport #332) by @mergify in #334
• Updated README in rclc_examples (backport #335) by @mergify in #336
• added documentation about number_of_handles in all examples. (backport #341) by @mergify in #342
• Humble Release 4.0.2 by @JanStaschulat in #345

Full Changelog: 4.0.1...4.0.2