mandb is not updated during ostree transaction
# Description of the bug
On Atomic desktops the manpages database is not updated automatically which makes autocompletion on `fish` shell not working. The actual manpage however loads without problems. I can reproduce it on both F40 and F41.
# Steps to reproduce
1. Install the fresh Atomic desktop VM.
2. Install all the updates and reboot.
3. Run `sudo mandb` and observe in the output that many pages were added even though they should've been added when the ostree transaction has occured.
# Expected Behavior
Manpages should be updated during `rpm-ostree` transaction e.g. as a pre or post script.
# Software information
OS: Fedora Sway Atomic 40, 41
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