Bump rack-attack from 5.4.2 to 6.0.0 (#10599)

* Bump rack-attack from 5.4.2 to 6.0.0

Bumps [rack-attack](https://github.com/kickstarter/rack-attack) from 5.4.2 to 6.0.0.
- [Release notes](https://github.com/kickstarter/rack-attack/releases)
- [Changelog](https://github.com/kickstarter/rack-attack/blob/master/CHANGELOG.md)
- [Commits](https://github.com/kickstarter/rack-attack/compare/v5.4.2...v6.0.0)

Signed-off-by: dependabot[bot] <support@dependabot.com>

* fix payload[:request]

Gemfile

@@ -66,7 +66,7 @@ gem 'ox', '~> 2.10'
 gem 'posix-spawn', git: 'https://github.com/rtomayko/posix-spawn', ref: '58465d2e213991f8afb13b984854a49fcdcc980c'
 gem 'pundit', '~> 2.0'
 gem 'premailer-rails'
-gem 'rack-attack', '~> 5.4'
+gem 'rack-attack', '~> 6.0'
 gem 'rack-cors', '~> 1.0', require: 'rack/cors'
 gem 'rails-i18n', '~> 5.1'
 gem 'rails-settings-cached', '~> 0.6'

Gemfile.lock

@@ -426,7 +426,7 @@ GEM
       activesupport (>= 3.0.0)
     raabro (1.1.6)
     rack (2.0.7)
-    rack-attack (5.4.2)
+    rack-attack (6.0.0)
       rack (>= 1.0, < 3)
     rack-cors (1.0.3)
     rack-protection (2.0.5)
@@ -735,7 +735,7 @@ DEPENDENCIES
   pry-rails (~> 0.3)
   puma (~> 3.12)
   pundit (~> 2.0)
-  rack-attack (~> 5.4)
+  rack-attack (~> 6.0)
   rack-cors (~> 1.0)
   rails (~> 5.2.3)
   rails-controller-testing (~> 1.0)

config/initializers/rack_attack_logging.rb

@@ -1,4 +1,6 @@
-ActiveSupport::Notifications.subscribe('rack.attack') do |_name, _start, _finish, _request_id, req|
+ActiveSupport::Notifications.subscribe(/rack_attack/) do |_name, _start, _finish, _request_id, payload|
+  req = payload[:request]
+
   next unless [:throttle, :blacklist].include? req.env['rack.attack.match_type']
   Rails.logger.info("Rate limit hit (#{req.env['rack.attack.match_type']}): #{req.ip} #{req.request_method} #{req.fullpath}")
 end