Update dependency rspec-sidekiq to v4 (#26627)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Gemfile

@@ -110,7 +110,7 @@ group :test do
   gem 'fuubar', '~> 2.5'
 
   # Extra RSpec extenion methods and helpers for sidekiq
-  gem 'rspec-sidekiq', '~> 3.1'
+  gem 'rspec-sidekiq', '~> 4.0'
 
   # Browser integration testing
   gem 'capybara', '~> 3.39'

Gemfile.lock

@@ -633,10 +633,12 @@ GEM
       rspec-expectations (~> 3.12)
       rspec-mocks (~> 3.12)
       rspec-support (~> 3.12)
-    rspec-sidekiq (3.1.0)
-      rspec-core (~> 3.0, >= 3.0.0)
-      sidekiq (>= 2.4.0)
-    rspec-support (3.12.0)
+    rspec-sidekiq (4.0.1)
+      rspec-core (~> 3.0)
+      rspec-expectations (~> 3.0)
+      rspec-mocks (~> 3.0)
+      sidekiq (>= 5, < 8)
+    rspec-support (3.12.1)
     rspec_chunked (0.6)
     rubocop (1.56.1)
       base64 (~> 0.1.1)
@@ -911,7 +913,7 @@ DEPENDENCIES
   redis-namespace (~> 1.10)
   rqrcode (~> 2.2)
   rspec-rails (~> 6.0)
-  rspec-sidekiq (~> 3.1)
+  rspec-sidekiq (~> 4.0)
   rspec_chunked (~> 0.6)
   rubocop
   rubocop-capybara