Update sidekiq requirement from >= 4.2.3, < 7.0 to >= 4.2.3, < 8.0

[dependabot[bot]]

Updates the requirements on sidekiq to permit the latest version.

Changelog

Sourced from sidekiq's changelog.

7.0.1

• Allow an embedding process to reuse its own heartbeat thread
• Update zh-cn localization

7.0.0

• Embedded mode!
• Capsules!!
• Job Execution metrics!!!
• See docs/7.0-Upgrade.md for release notes

6.5.8

• Fail if using a bad version of scout_apm #5616
• Add pagination to Busy page #5556
• Speed up WorkSet#each #5559
• Adjust CurrentAttributes to work with the String class name so we aren't referencing the Class within a Rails initializer #5536

6.5.7

• Updates for JA and ZH locales
• Further optimizations for scheduled polling #5513

6.5.6

• Fix deprecation warnings with redis-rb 4.8.0 #5484
• Lock redis-rb to < 5.0 as we are moving to redis-client in Sidekiq 7.0

6.5.5

• Fix require issue with job_retry.rb #5462
• Improve Sidekiq::Web compatibility with Rack 3.x

6.5.4

• Fix invalid code on Ruby 2.5 #5460
• Fix further metrics dependency issues #5457

6.5.3

• Don't require metrics code without explicit opt-in #5456

... (truncated)

Commits

• 0e91f17 6.5.8
• 2bfe306 refactor pollable
• fe62d55 Metrics: Removes polling button (#5600)
• 09f2a4c Renames test files to *_test.rb (#5618)
• 1e80f43 ready for release
• 636fa9a Fix lingering threads in tests
• b1fc7fa Upgrade test suite to use maxitest
• b543325 latest
• 550206f update embed example, shouldnt need require
• 8a1e33f Fix wrong translation. And add missing translation for metric page (#5601)
• Additional commits viewable in compare view

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[dependabot[bot]]

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