Fix serialize type deprecation warning on Rails 7.1+

[mikker]

Upgrading to Rails 7.1 is giving me this warning when my app boots:

DEPRECATION WARNING: Passing the class as positional argument is deprecated and will be removed in Rails 7.2.

Please pass the class as a keyword argument:

  serialize :value, type: Hash

This fixes it.

[mikker]

Not sure what the best version number to compare against is but currently 7.1.0.beta1 is the most recent one.

if ActiveRecord.version >= "7.1.0.beta1"

On final release, maybe we could change it to just "7.1.0" which reads a bit better IMO. Not sure.

[ledermann]

Thanks, LGTM. One minor thing: Can you remove the unrelated formatting changes, please?

[mikker]

Of course! Forgot to turn off Rubyfmt in that last commit 🙄

[ledermann]

Great, thanks!

[mikker]

Thank you for the quick response 🤝