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>;