[itc-parentchain-light-client] fix test compilation

Author: clangenb

core/parentchain/light-client/src/concurrent_access.rs

@@ -125,7 +125,7 @@ mod tests {
 	#[test]
 	fn execute_with_and_without_mut_in_single_thread_works() {
 		let validator_mock = ValidatorMock::default();
-		let accessor = TestAccessor::new(validator_mock);
+		let accessor = TestAccessor::new(validator_mock, LightValidationStateSealMock);
 
 		let _read_result = accessor.execute_on_validator(|_v| Ok(())).unwrap();
 		let _write_result = accessor.execute_mut_on_validator(|_v| Ok(())).unwrap();