Merge branch '42385-enable-the-rspec-singlelinehook-cop' into 'master'

Resolve "Re-enable the `RSpec/SingleLineHook` cop"

Closes #42385

See merge request gitlab-org/gitlab-ce!16704

.rubocop_todo.yml

@@ -342,10 +342,6 @@ RSpec/SharedContext:
   Exclude:
     - 'spec/features/admin/admin_groups_spec.rb'
 
-# Offense count: 90
-RSpec/SingleLineHook:
-  Enabled: false
-
 # Offense count: 5
 RSpec/VoidExpect:
   Exclude:

Gemfile.lock

@@ -304,7 +304,7 @@ GEM
       mime-types (>= 1.16)
       posix-spawn (~> 0.3)
     gitlab-markup (1.6.3)
-    gitlab-styles (2.3.0)
+    gitlab-styles (2.3.1)
       rubocop (~> 0.51)
       rubocop-gitlab-security (~> 0.1.0)
       rubocop-rspec (~> 1.19)