Fix flaky availability-recovery test (#3812)

* Increase timeout in tests.

Fixes #3798

* Fix timeout.

node/network/availability-recovery/src/lib.rs

@@ -93,7 +93,7 @@ const COST_INVALID_REQUEST: Rep = Rep::CostMajor("Peer sent unparsable request")
 #[cfg(not(test))]
 const TIMEOUT_START_NEW_REQUESTS: Duration = CHUNK_REQUEST_TIMEOUT;
 #[cfg(test)]
-const TIMEOUT_START_NEW_REQUESTS: Duration = Duration::from_millis(10);
+const TIMEOUT_START_NEW_REQUESTS: Duration = Duration::from_millis(100);
 
 /// The Availability Recovery Subsystem.
 pub struct AvailabilityRecoverySubsystem {

node/network/availability-recovery/src/tests.rs

@@ -109,7 +109,7 @@ fn test_harness_chunks_only<T: Future<Output = (VirtualOverseer, RequestResponse
 	.unwrap();
 }
 
-const TIMEOUT: Duration = Duration::from_millis(100);
+const TIMEOUT: Duration = Duration::from_millis(300);
 
 macro_rules! delay {
 	($delay:expr) => {