DEV: Upgrade Rails to version 7.1 (#27539)

* DEV: Upgrade Rails to 7.1

* FIX: Remove references to `Rails.logger.chained`

`Rails.logger.chained` was provided by Logster before Rails 7.1
introduced their broadcast logger. Now all the loggers are added to
`Rails.logger.broadcasts`.

Some code in our initializers was still using `chained` instead of
`broadcasts`.

* DEV: Make parameters optional to all FakeLogger methods

* FIX: Set `override_level` on Logster loggers (#27519)

A followup to f595d599dd361b7fb39fb3c82cbc11d19d518c19

* FIX: Don’t duplicate Rack response

---------

Co-authored-by: Jarek Radosz <jradosz@gmail.com>

spec/lib/auth/default_current_user_provider_spec.rb

@@ -21,11 +21,11 @@ RSpec.describe Auth::DefaultCurrentUserProvider do
   end
 
   def get_cookie_info(cookie_jar, name)
-    headers = {}
+    response = ActionDispatch::Response.new
     cookie_jar.always_write_cookie = true
-    cookie_jar.write(headers)
+    cookie_jar.write(response)
 
-    header = headers["Set-Cookie"]
+    header = response.headers["Set-Cookie"]
     return if header.nil?
 
     info = {}