Fix RSpec/EmptyLineAfterFinalLetItBe for ee/spec/features/boards

Contributes to https://gitlab.com/gitlab-org/gitlab/-/issues/325836

.rubocop_manual_todo.yml

@@ -400,7 +400,6 @@ RSpec/EmptyLineAfterFinalLetItBe:
     - ee/spec/controllers/groups/insights_controller_spec.rb
     - ee/spec/controllers/groups/todos_controller_spec.rb
     - ee/spec/controllers/subscriptions_controller_spec.rb
-    - ee/spec/features/boards/group_boards/multiple_boards_spec.rb
     - ee/spec/features/ci_shared_runner_warnings_spec.rb
     - ee/spec/features/groups/groups_security_credentials_spec.rb
     - ee/spec/features/groups/hooks/user_edits_hooks_spec.rb

ee/spec/features/boards/group_boards/multiple_boards_spec.rb

@@ -7,6 +7,7 @@ RSpec.describe 'Multiple Issue Boards', :js do
   let_it_be(:group) { create(:group, :public) }
   let_it_be(:planning) { create(:group_label, group: group, name: 'Planning') }
   let_it_be(:board) { create(:board, group: group) }
+
   let(:parent) { group }
   let(:boards_path) { group_boards_path(group) }