Bump sidekiq from 6.5.8 to 7.0.4

Bumps [sidekiq](https://github.com/sidekiq/sidekiq) from 6.5.8 to 7.0.4.
- [Release notes](https://github.com/sidekiq/sidekiq/releases)
- [Changelog](https://github.com/sidekiq/sidekiq/blob/main/Changes.md)
- [Commits](https://github.com/sidekiq/sidekiq/compare/v6.5.8...v7.0.4)

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

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

Gemfile.lock

@@ -556,6 +556,8 @@ GEM
       ffi (~> 1.0)
     redcarpet (3.6.0)
     redis (4.8.1)
+    redis-client (0.12.1)
+      connection_pool
     regexp_parser (2.7.0)
     reline (0.3.2)
       io-console (~> 0.5)
@@ -647,10 +649,11 @@ GEM
     semantic_range (3.0.0)
     shoulda-matchers (5.3.0)
       activesupport (>= 5.2.0)
-    sidekiq (6.5.8)
-      connection_pool (>= 2.2.5, < 3)
-      rack (~> 2.0)
-      redis (>= 4.5.0, < 5)
+    sidekiq (7.0.4)
+      concurrent-ruby (< 2)
+      connection_pool (>= 2.3.0)
+      rack (>= 2.2.4)
+      redis-client (>= 0.11.0)
     sidekiq-scheduler (5.0.1)
       rufus-scheduler (~> 3.2)
       sidekiq (>= 4, < 8)