Update deprecation tracker to support newer Rails versions (7.1+)

[daugaard]

Description

Since Rails 7.1 the preferred way to track deprecations is to access the deprecation trackers via Rails.application.deprecators.

Here, we change the implementation to use that if it is available, otherwise fallback to tracking deprecations via the ActiveSupport::Deprecation singleton object for older Rails versions.

Related Rails changes:

• Add Rails.application.deprecators
• Deprecate ActiveSupport::Deprecation singleton usage

Motivation and Context

This is required to avoid getting deprecation warnings when using next_rails on Rails 7.1+ versions.

DEPRECATION WARNING: Calling behavior on ActiveSupport::Deprecation is deprecated and will be removed from Rails (use Rails.
application.deprecators[framework].behavior where framework is for example :active_record instead) (called from block in <to
p (required)> at /Users/sorendaugaard/xxxx/spec/rails_helper.rb:300)

Additionally, eventually access via the singleton will be retired, this change will ensure we can still track deprecations when that happens.

How Has This Been Tested?

I added new specs to test this functionality.

Additionally, I tested this against a Rails 7.1 project and check that we received the expected deprecation warnings.

Screenshots:

n/a

I will abide by the code of conduct ✅

[etagwerker]

This looks good to me, thanks!

[JuanVqz]

@daugaard Thanks for such contribution! 🏅

I'll release it tomorrow if @etagwerker didn't do it yet

[etagwerker]

@JuanVqz I won't have time today, so tomorrow would be great. Thanks!

[JuanVqz]

As mentioned before it has been released

https://github.com/fastruby/next_rails/releases/tag/v1.4.4