ostruct won't be shipped with Ruby >= 3.5.0

[midnight-wonderer]

gems/3.4.0/gems/mongoid-9.0.6/lib/mongoid/indexable.rb:6: warning: ostruct was loaded from the standard library, but will no longer be part of the default gems starting from Ruby 3.5.0.

It seems the one distributed via rubygems.org supports down to Ruby 2.5.0.
The solution is probably adding ostruct to gemspec?

[johnnyshields]

This probably won't be needed, because ActiveSupport will probably add it in, and therefore Mongoid won't have to.

Alternatively, Mongoid could just get rid of its usage of ostruct, it's a code smell anyway.