statesync: increase dispatcher timeout (#6714)

internal/statesync/reactor.go

@@ -95,7 +95,7 @@ const (
 
 	// lightBlockResponseTimeout is how long the dispatcher waits for a peer to
 	// return a light block
-	lightBlockResponseTimeout = 10 * time.Second
+	lightBlockResponseTimeout = 30 * time.Second
 
 	// maxLightBlockRequestRetries is the amount of retries acceptable before
 	// the backfill process aborts