Add GTEST_ALLOW_UNINSTANTIATED_PARAMETERIZED_TEST to gwp_asan unittests

This keeps it working after the gtest update in a866ce789eb99da4d7a486eeb60a53be6c75f4fd

GitOrigin-RevId: 4f1f171f330545c7fad254a672c61eaffcd9344c
diff --git a/tests/harness.cpp b/tests/harness.cpp
index 4633d3e..7ed408b 100644
--- a/tests/harness.cpp
+++ b/tests/harness.cpp
@@ -55,7 +55,9 @@
 #else
 INSTANTIATE_TEST_SUITE_P(RecoverableTests, BacktraceGuardedPoolAllocator,
                          /* Recoverable */ testing::Values(true));
+GTEST_ALLOW_UNINSTANTIATED_PARAMETERIZED_TEST(BacktraceGuardedPoolAllocator);
 INSTANTIATE_TEST_SUITE_P(RecoverableAndNonRecoverableTests,
                          BacktraceGuardedPoolAllocatorDeathTest,
                          /* Recoverable */ testing::Bool());
+GTEST_ALLOW_UNINSTANTIATED_PARAMETERIZED_TEST(BacktraceGuardedPoolAllocatorDeathTest);
 #endif