Upgrade Rails to 7.1.1

[kartiki975]

What does this PR change?

This PR involves a lot of changes. I highly suggest reviewing changes commit by commit.

• Upgraded Rails to 7.1.1
• Realized that Rails upgrade was no longer compatible with the Ruby versions that were supported
• Upgrade Ruby to 3.2.0
• Upgraded Rubocop to be compatible with the Ruby upgrade
• Fix encrypted fields that were no longer being decrypted successfully: https://github.com/Shopify/shipit-engine/pull/1322/commits/d09368cf8ffb756487764391da1af68e8fc7cb05
• Create mandatory storage file - will not affect production
• Misc:
  • get rid of deprecations
  • swab pry with pry-byebug gem

Focus for reviewers

Due to some limitations, I had to manually do this upgrade. Please carefully these changes! Most important of all is the encryption algorithm change. Reading through the section, it doesn't seem anything applies to this repo since config.active_support.key_generator_hash_digest_class was never manually configured. If someone could give that a check, please leave 👍!

Aside

Rails 7.2 is expected to officially deprecate Rails.application.secrets in favor of Rails.application.credentials. This will be handled in a follow up PR.

[kartiki975]

@casperisfine Hey, Jean! I had to manually upgrade rails and a bunch of other dependencies for some internal Shopify ticket which is due tomorrow. Could you please take a look at these changes?

[kartiki975]

Closing this out in favour of https://github.com/Shopify/shipit-engine/pull/1324