ofn_paper_trail_upgrade_to_rails_7.1

```
Check the Rails upgrade guide at https://guides.rubyonrails.org/upgrading_ruby_on_rails.html#new-activesupport-cache-serialization-format
for more information on how to upgrade.
 (called from <main> at /home/work/opensource/openfoodnetwork/config/environment.rb:5)
      PaperTrail 12.3.0 is not compatible with ActiveRecord 7.1.2. We allow PT
      contributors to install incompatible versions of ActiveRecord, and this
      warning can be silenced with an environment variable, but this is a bad
      idea for normal use. Please install a compatible version of ActiveRecord
      instead (>= 5.2, < 7.1). Please see the discussion in paper_trail/compatibility.rb
      for details.
```