uasort(): Returning bool from comparison function is deprecated

Tests failed because of my failure to fix the other sort function in linkit_profiles.inc.

Can't seem to run another test at this moment.

Tests are failing on 7.x-3.x with GitLab because the testing syntax is outdated. That said, this code change makes logical sense to me for remediating PHP 8 syntax expectations, so I'm comfortable proceeding with the merge.

Automatically closed - issue fixed for 2 weeks with no activity.

Attributing my contribution to my organization. Thanks for merging, @mark_fullmer!