Improve Sidekiq 8 support

Changed

• Specify stricter Rack version requirement. The Ruby gem relies on the Rack::Events constant which was introduced in Rack 2. Update our version requirement to require Rack 2 or newer.

Fixed

• Fix the queue time reporting for Sidekiq 8 jobs. It would report high negative values for the queue time with Sidekiq 8.

View the Ruby gem v4.5.3 changelog for more information.