Bump acts-as-taggable-on gem version
What does this MR do and why?
We'll need acts-as-taggable-on
v9 for updating to Rails 7, so it makes sense to update to v8.1 for now
Changelog: https://github.com/mbleigh/acts-as-taggable-on/blob/master/CHANGELOG.md
Edited by Igor Drozdov