Upcoming RMW Feature Freeze for Humble on March 21th

[wep21]

@audrow @clalancette I guess ros2 ci is still broken due to python3.10 transition.

Preparing for Rolling sync 2022-03-24

Rolling is very active right now with the recent transition to new platforms so we can expect more frequent syncs for the next couple of weeks and from there things may settle down or continue at this pace right into the Humble release window. The next sync is planned for 2022-03-03T08:00:00Z (UTC). After today we’ll begin holding rosdistro PRs for Rolling releases unless they resolve a regression or other issue linked in this thread.

How about postponing the deadline until the ci becomes stable?