fix(runtimes):security: pallet scheduler should not be used by end users

runtime/common/src/pallets_config.rs

@@ -91,7 +91,7 @@ macro_rules! pallets_config {
             type PalletsOrigin = OriginCaller;
             type Call = Call;
             type MaximumWeight = MaximumSchedulerWeight;
-            type ScheduleOrigin = frame_system::EnsureSigned<AccountId>;
+            type ScheduleOrigin = EnsureRoot<AccountId>;
             type OriginPrivilegeCmp = EqualPrivilegeOnly;
             type MaxScheduledPerBlock = MaxScheduledPerBlock;
             type WeightInfo = pallet_scheduler::weights::SubstrateWeight<Runtime>;