Bump sidekiq from 5.2.5 to 5.2.6 (#10582)
Bumps [sidekiq](https://github.com/mperham/sidekiq) from 5.2.5 to 5.2.6.
- [Release notes](https://github.com/mperham/sidekiq/releases)
- [Changelog](https://github.com/mperham/sidekiq/blob/master/Changes.md)
- [Commits](https://github.com/mperham/sidekiq/compare/v5.2.5...v5.2.6)
Signed-off-by: dependabot[bot] <support@dependabot.com>