Bump sidekiq from 6.0.7 to 6.2.1

Bumps [sidekiq](https://github.com/mperham/sidekiq) from 6.0.7 to 6.2.1.
- [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/v6.0.7...v6.2.1)

---
updated-dependencies:
- dependency-name: sidekiq
  dependency-type: direct:production
...

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

Gemfile.lock

@@ -89,7 +89,7 @@ GEM
     coercible (1.0.0)
       descendants_tracker (~> 0.0.1)
     concurrent-ruby (1.1.8)
-    connection_pool (2.2.3)
+    connection_pool (2.2.5)
     coveralls_reborn (0.18.0)
       simplecov (>= 0.18.1, < 0.20.0)
       term-ansicolor (~> 1.6)
@@ -271,8 +271,6 @@ GEM
     raabro (1.1.6)
     racc (1.5.2)
     rack (2.2.3)
-    rack-protection (2.0.8.1)
-      rack
     rack-proxy (0.6.5)
       rack
     rack-test (1.1.0)
@@ -318,7 +316,7 @@ GEM
     recurrence (1.3.0)
       activesupport
       i18n
-    redis (4.1.4)
+    redis (4.4.0)
     repost (0.3.2)
     responders (2.4.1)
       actionpack (>= 4.2.0, < 6.0)
@@ -348,11 +346,10 @@ GEM
       activesupport (>= 4)
     semantic_range (2.3.0)
     sha3 (1.0.1)
-    sidekiq (6.0.7)
+    sidekiq (6.2.1)
       connection_pool (>= 2.2.2)
       rack (~> 2.0)
-      rack-protection (>= 2.0.0)
-      redis (>= 4.1.0)
+      redis (>= 4.2.0)
     sidekiq-cron (1.1.0)
       fugit (~> 1.1)
       sidekiq (>= 4.2.1)