3.0.9-rolling

What's Changed

• Added build status of bloom-releases for Humble distribution by @JanStaschulat in #291
• [rolling] updated ros-tooling versions by @JanStaschulat in #289
• github action: updated os-version to ubuntu-22.04 (backport #295) by @mergify in #296
• added doxygen files by @JanStaschulat in #301
• Fix parameter change event (backport #310) by @mergify in #311
• Drop build dependency on std_msgs by @cottsay in #314
• Updated ros-tooling versions by @JanStaschulat in #318
• removed build status for Galactic distribution in README by @JanStaschulat in #321
• Update documentation about number_of_handles by @JanStaschulat in #326
• Example real-time concurreny timer and subscription by @JanStaschulat in #329
• updated rclc_examples by @JanStaschulat in #332
• Updated README in rclc_examples by @JanStaschulat in #335
• executor.h: Fix a few docs typos by @mwleeds in #338
• added documentation about number_of_handles in all examples. by @JanStaschulat in #341
• Rolling Release 3.0.9 by @JanStaschulat in #346

New Contributors

• @cottsay made their first contribution in #314
• @mwleeds made their first contribution in #338

Full Changelog: 3.0.8...3.0.9