Add missing SLM cluster privilege

Author: sebelga

x-pack/plugins/snapshot_restore/common/constants.ts

@@ -55,7 +55,7 @@ export const APP_REQUIRED_CLUSTER_PRIVILEGES = [
   'cluster:admin/repository',
 ];
 export const APP_RESTORE_INDEX_PRIVILEGES = ['monitor'];
-export const APP_SLM_CLUSTER_PRIVILEGES = ['manage_slm'];
+export const APP_SLM_CLUSTER_PRIVILEGES = ['manage_slm', 'cluster:monitor/state'];
 
 export const TIME_UNITS: { [key: string]: 'd' | 'h' | 'm' | 's' } = {
   DAY: 'd',