Issues and merge requests that need to be resolved before 3.0.0 can be released.

Update 2024-10-27: we want to get pmb v3 out soon, so from now on this milestone should only contain absolutely important blockers that need to be solved before we can make the release. Don't assign the milestone to anything else.

Once pmb v3 is out, the distinction between 3.0.0 and not is not needed anymore. In the meantime, make sure that the issue says somewhere that this affects pmbootstrap 3.0.0 / current master when removing the milestone.