Add support for multiple aspect ratios

[Mth0158]

Like content_type, we should be able to support multiple aspect ratios.

Possible to get inspiration from this fork: master...nejdetkadir:active_storage_validations:master. But not too much because they modified the :with option, we would rather like something with :in like content_type validator does.

Do not forget to add tests to your validator update + update the associated matcher

Please notify the fork owner so he/she can update its gemfile

[mohammednasser-32]

Hello @Mth0158 , just checking before jumping in since this seems to be open for a while 😅 can I work on this?

[Mth0158]

Hi @mohammednasser-32
Yes, you can jump on it, let me know if you need any assistance:)