Update send identify RQ to send user gotrue id instead of user id (supabase#29793)

Author: joshenlim

apps/studio/data/telemetry/send-identify-mutation.ts

@@ -66,7 +66,7 @@ export const useSendIdentifyMutation = ({
  const type = usePostHogParameters ? 'PH' : 'GA'
  const body = usePostHogParameters
  ? ({
- user_id: user.id.toString(),
+ user_id: user.gotrue_id,
  organization_slug: slug,
  project_ref: ref,
  } as SendIdentifyPH)