feat(growth): Adding A/B test for overage notifications (#28122)

static/app/data/experimentConfig.tsx

@@ -25,6 +25,12 @@ export const experimentList = [
     parameter: 'exposed',
     assignments: [0, 1],
   },
+  {
+    key: 'OverageNotificationExperiment',
+    type: ExperimentType.Organization,
+    parameter: 'exposed',
+    assignments: [0, 1],
+  },
   {
     key: 'CheckoutDefaultBusinessExperiment',
     type: ExperimentType.Organization,