Fix spec for old rails

Author: solnic

sentry-rails/spec/sentry/rails/activejob_spec.rb

@@ -434,7 +434,7 @@ def perform(event, hint)
     end
   end
 
-  describe "active_job_report_after_job_retries", skip: Rails.version.to_f < 5.1 do
+  describe "active_job_report_after_job_retries", skip: RAILS_VERSION < 7.0 do
     context "when active_job_report_after_job_retries is false" do
       it "reports 3 exceptions" do
         allow(Sentry::Rails::ActiveJobExtensions::SentryReporter)

sentry-rails/spec/spec_helper.rb

@@ -34,6 +34,8 @@
 
 Dir["#{__dir__}/support/**/*.rb"].each { |file| require file }
 
+RAILS_VERSION = Rails.version.to_f
+
 RSpec.configure do |config|
   # Enable flags like --only-failures and --next-failure
   config.example_status_persistence_file_path = ".rspec_status"