Upgrade to Rails 8

[mitchellhenke]

🛠 Summary of changes

I don't see any potential breaking changes and deprecations that could affect us in the 8.0 release notes, so may as well go for it.

[zachmargolis]

🚢 !!

[aduth]

Should we update the target Rails version in the Rubocop configuration as well?

identity-idp/.rubocop.yml

Line 33 in 03a3a7c

TargetRailsVersion: 7.2

[mitchellhenke]

There are a few changes here:

# Specifies whether `to_time` methods preserve the UTC offset of their receivers or preserves the timezone.
# If set to `:zone`, `to_time` methods will use the timezone of their receivers.
# If set to `:offset`, `to_time` methods will use the UTC offset.
# If `false`, `to_time` methods will convert to the local system UTC offset instead.
Rails.application.config.active_support.to_time_preserves_timezone = :zone

# When both `If-Modified-Since` and `If-None-Match` are provided by the client
# only consider `If-None-Match` as specified by RFC 7232 Section 6.
# If set to `false` both conditions need to be satisfied.
Rails.application.config.action_dispatch.strict_freshness = true

# Set `Regexp.timeout` to `1`s by default to improve security over Regexp Denial-of-Service attacks.
Regexp.timeout = 1

I don't think any of them affect us though.