Bump sidekiq from 6.5.1 to 6.5.3 (#18281)

Bumps [sidekiq](https://github.com/mperham/sidekiq) from 6.5.1 to 6.5.3.
- [Release notes](https://github.com/mperham/sidekiq/releases)
- [Changelog](https://github.com/mperham/sidekiq/blob/main/Changes.md)
- [Commits](https://github.com/mperham/sidekiq/compare/v6.5.1...v6.5.3)

---
updated-dependencies:
- dependency-name: sidekiq
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Gemfile

@@ -95,7 +95,7 @@ gem "rouge", "~> 3.30" # A pure-ruby code highlighter
 gem "rss", "~> 0.2.9" # Ruby's standard library for RSS
 gem "rubyzip", "~> 2.3" # Rubyzip is a ruby library for reading and writing zip files
 gem "s3_direct_upload", "~> 0.1" # Direct Upload to Amazon S3
-gem "sidekiq", "~> 6.5.1" # Sidekiq is used to process background jobs with the help of Redis
+gem "sidekiq", "~> 6.5.3" # Sidekiq is used to process background jobs with the help of Redis
 gem "sidekiq-cron", "~> 1.7" # Allows execution of scheduled cron jobs as specific times
 gem "sidekiq-unique-jobs", "~> 7.1.27" # Ensures that Sidekiq jobs are unique when enqueued
 gem "slack-notifier", "~> 2.4" # A slim ruby wrapper for posting to slack webhooks

Gemfile.lock

@@ -817,10 +817,10 @@ GEM
     shellany (0.0.1)
     shoulda-matchers (5.1.0)
       activesupport (>= 5.2.0)
-    sidekiq (6.5.1)
+    sidekiq (6.5.3)
       connection_pool (>= 2.2.2)
       rack (~> 2.0)
-      redis (>= 4.2.0)
+      redis (>= 4.5.0)
     sidekiq-cron (1.7.0)
       fugit (~> 1)
       sidekiq (>= 4.2.1)
@@ -1082,7 +1082,7 @@ DEPENDENCIES
   s3_direct_upload (~> 0.1)
   sassc-rails (~> 2.1.2)
   shoulda-matchers (~> 5.1.0)
-  sidekiq (~> 6.5.1)
+  sidekiq (~> 6.5.3)
   sidekiq-cron (~> 1.7)
   sidekiq-unique-jobs (~> 7.1.27)
   simplecov (~> 0.21.2)