Update rails to 6.1.2.1
Fixes CVEs (which our app by default isn't affected, but other configurations might be): https://weblog.rubyonrails.org/2021/2/10/Rails-5-2-4-5-6-0-3-5-and-6-1-2-1-have-been-released/
Fixes CVEs (which our app by default isn't affected, but other configurations might be): https://weblog.rubyonrails.org/2021/2/10/Rails-5-2-4-5-6-0-3-5-and-6-1-2-1-have-been-released/