Bump sidekiq from 5.1.1 to 5.1.3

[dependabot-preview]

Bumps sidekiq from 5.1.1 to 5.1.3.

Changelog

Sourced from sidekiq's changelog.

5.1.3

• Fix version comparison so Ruby 2.2.10 works. [#3808, nateberkopec]

5.1.2

• Add link to docs in Web UI footer
• Fix crash on Ctrl-C in Windows [#3775, Bernica]
• Remove freeze calls on String constants. This is superfluous with Ruby
  2.3+ and frozen_string_literal: true. [#3759]
• Fix use of AR middleware outside of Rails [#3787]
• Sidekiq::Worker sidekiq_retry_in block can now return nil or 0 to use
  the default backoff delay [#3796, dsalahutdinov]

Commits

• 873f1df changes, release
• bca9396 Fix Ruby version comparison
• 6614abd release
• c262f76 release
• b23c0ec Use RAILS_MAX_THREADS for client pool size
• 60a41d3 change
• 82bdae8 Add link to docs in footer
• 86ca02f Refactor, changes
• 7448351 fix: use default when returned 0
• 611f7cd Use default retry interval in sidekiq_retry_in
• Additional commits viewable in compare view

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