allocator-test: test_large_token OK to block

tests/allocator-test.cc

diff --git a/tests/allocator-test.cc b/tests/allocator-test.cc
index 6444edc..d50ba27 100644
--- a/tests/allocator-test.cc
+++ b/tests/allocator-test.cc
@@ -543,8 +543,9 @@
 	{
 		void      *unsealedCapability;
 		auto       sealingCapability = STATIC_SEALING_TYPE(sealingTest);
+		Timeout    t{AllocTimeout};
 		Capability sealedPointer =
-		  token_sealed_unsealed_alloc(&noWait,
+		  token_sealed_unsealed_alloc(&t,
 		                              MALLOC_CAPABILITY,
 		                              sealingCapability,
 		                              tokenSize,