NÁVOD:
https://www.layerstack.com/resources/tutorials/How-to-upgrade-from-AlmaLinux8-to-AlmaLinux9

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UPGRADE INHIBITED
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Upgrade has been inhibited due to the following problems:
1. Inhibitor: Upgrade requires links in root directory to be relative
Consult the pre-upgrade report for details and possible remediation.

Toto je změna, kterou se snažíte provést:

$>ls -ld /snap
lrwxrwxrwx 1 root root 19 Jan 30 16:24 /snap -> /var/lib/snapd/snap

# Then...
$>ln -snf var/lib/snapd/snap /snap
$>ls -ld /snap                    
lrwxrwxrwx 1 root root 18 Jan 30 16:24 /snap -> var/lib/snapd/snap