Add usage statistics data for secure stage

Added usage activity data for the secure stage

ee/lib/ee/gitlab/usage_data.rb

@@ -175,6 +175,7 @@ module EE
               package: usage_activity_by_stage_package,
               plan: usage_activity_by_stage_plan,
               release: usage_activity_by_stage_release,
+              secure: usage_activity_by_stage_secure,
               verify: usage_activity_by_stage_verify
             }
           }
@@ -270,6 +271,15 @@ module EE
             projects_reporting_ci_cd_back_to_github: ::Project.with_github_service_pipeline_events.distinct_count_by(:creator_id)
           }
         end
+
+        # Currently too complicated and to get reliable counts for these stats:
+        # container_scanning_jobs, dast_jobs, dependency_scanning_jobs, license_management_jobs, sast_jobs
+        # Once https://gitlab.com/gitlab-org/gitlab/merge_requests/17568 is merged, this might be doable
+        def usage_activity_by_stage_secure
+          {
+            user_preferences_group_overview_security_dashboard: count(::User.active.group_view_security_dashboard)
+          }
+        end
       end
     end
   end

ee/spec/lib/ee/gitlab/usage_data_spec.rb

@@ -170,6 +170,16 @@ describe Gitlab::UsageData do
         end
       end
 
+      context 'for secure' do
+        it 'includes accurate usage_activity_by_stage data' do
+          create(:user, group_view: :security_dashboard)
+
+          expect(described_class.uncached_data[:usage_activity_by_stage][:secure]).to eq(
+            user_preferences_group_overview_security_dashboard: 1
+          )
+        end
+      end
+
       context 'for verify' do
         it 'includes accurate usage_activity_by_stage data' do
           user = create(:user)