Deflake TestFlowContolLogicalRace (#1279)

diff --git a/test/end2end_test.go b/test/end2end_test.go
index 2ec19fb..e4febbc 100644
--- a/test/end2end_test.go
+++ b/test/end2end_test.go
@@ -4120,7 +4120,7 @@
 		recvCount   = 2
 		maxFailures = 3
 
-		requestTimeout = time.Second
+		requestTimeout = time.Second * 5
 	)
 
 	requestCount := 10000