When attempting to upgrade WordPress 7.1 to 7.2 I received the following error:

The update cannot be installed because we will be unable to copy some files. This is usually due to inconsistent file permissions.: wp-admin/includes/update-core.php

A little Binging around and I found the solution here:
https://aaronjholbrook.com/wordpress-permissions-update-error-resolved/

Just in case that site goes down, here’s what to do:

SSH into your web server and run the following 3 commands:

Reset the permissions of all files to 664:

find /path/to/site/ -type f -exec chmod 664 {} \;

Reset permissions of directories to 775:

find /path/to/site/ -type d -exec chmod 775 {} \;

Reset the group to the apache group

chgrp -R apache /path/to/site/