Fix use of Raven optional attributes

This fixes a usage of Raven optional attributes, which must be
provided under one of the acceptable, pre-defined keys.

ee/app/workers/groups/export_memberships_worker.rb

@@ -19,7 +19,7 @@ module Groups
     rescue Module::DelegationError => exception
       # TEMPORARY: Rescue when a User record is not available,
       # see https://gitlab.com/gitlab-org/gitlab/-/issues/338707
-      Raven.capture_exception(exception, group_id: @group.id, user_id: @current_user.id)
+      Raven.capture_exception(exception, tags: { group_id: @group.id, user_id: @current_user.id })
     end
 
     private

ee/spec/workers/groups/export_memberships_worker_spec.rb

@@ -29,7 +29,7 @@ RSpec.describe Groups::ExportMembershipsWorker do
 
     it 'rescues the exception' do
       expect(Notify).not_to receive(:memberships_export_email)
-      expect(Raven).to receive(:capture_exception)
+      expect(Raven).to receive(:capture_exception).and_call_original
       worker.perform(group.id, user.id)
     end
   end