Thank you @ppr , that link provided a simple fix for the core issue.
I suspect that my previous failed update attempt created a new problem. The next update attempt failed because it couldn’t create a backup. Specifically it seemed to be trying to back up something that’s not there:
File or folder '/etc/php/8.3/fpm/pool.d/nextcloud.conf' to be backed up does not exist
Full Log Link: https://paste.yunohost.org/raw/abigiwaqar
I was able to work around this without uninstalling NextCloud by following this suggestion:
Now my update has completed successfully.