Update Sidekiq documentation link (#7175)
Update Sidekiq documentation link (#7175)

* Update Sidekiq documentation link

* Change link to Dogstatsd

Co-authored-by: Sarah Witt <a9e6bc4b6a6e86593fe20296d51163cdbfba9279@husky.neu.edu>

* Remove extra link

Co-authored-by: Sarah Witt <a9e6bc4b6a6e86593fe20296d51163cdbfba9279@husky.neu.edu>
DataDog/integrations-core,DataDog/integrations-core,DataDog/integrations-core,DataDog/integrations-core,DataDog/integrations-core,DataDog/integrations-core,DataDog/integrations-core,DataDog/integrations-core,DataDog/integrations-core,DataDog/integrations-core