Bump sidekiq-bulk from 0.1.1 to 0.2.0 (#9306)

Bumps [sidekiq-bulk](https://github.com/aprescott/sidekiq-bulk) from 0.1.1 to 0.2.0.
- [Release notes](https://github.com/aprescott/sidekiq-bulk/releases)
- [Changelog](https://github.com/aprescott/sidekiq-bulk/blob/master/CHANGES.md)
- [Commits](https://github.com/aprescott/sidekiq-bulk/commits

)

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