Branch `humble` is outdated, unmaintained

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Issue

At the time of writing, humble branch is 380+ commits behind from main branch.
ROS humble still has support until 2027/05, so silently unmaintaining it may not be good. Also there's been some work that is specifically targeted to humble e.g. #1039

Related (sub?) issue

On the other hand, on the tutorial page https://moveit.picknik.ai/ there may not be a straightforward way to switch to humble. Is that related to #240?
(A workaround I found: Modify the URL to moveit.picknik.ai/humble)

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Although I brought up this issue, I personally don't see a bandwidth to work on this now. Help appreciated.