Update rubocop-rspec to version 3.10.1 (#39303)

spec/serializers/rest/admin/cohort_serializer_spec.rb

@@ -14,7 +14,7 @@ RSpec.describe REST::Admin::CohortSerializer do
           'data' => be_a(Array).and(
             all(include('date' => match_api_datetime_format))
           ),
-          'period' => match(/2024-01-01/).and(match_api_datetime_format)
+          'period' => include('2024-01-01').and(match_api_datetime_format)
         )
     end
   end