Fix ASAN and sanity

CMakeLists.txt

@@ -10797,6 +10797,7 @@ target_include_directories(channelz_test
   PRIVATE ${_gRPC_CARES_INCLUDE_DIR}
   PRIVATE ${_gRPC_GFLAGS_INCLUDE_DIR}
   PRIVATE ${_gRPC_ADDRESS_SORTING_INCLUDE_DIR}
+  PRIVATE ${_gRPC_NANOPB_INCLUDE_DIR}
   PRIVATE third_party/googletest/googletest/include
   PRIVATE third_party/googletest/googletest
   PRIVATE third_party/googletest/googlemock/include

test/core/channel/channelz_test.cc

@@ -153,6 +153,7 @@ TEST(ChannelzChannelTest, ChannelzDisabled) {
   ChannelNode* channelz_channel = grpc_channel_get_channelz_node(channel);
   char* json_str = channelz_channel->RenderJSON();
   ASSERT_EQ(json_str, nullptr);
+  grpc_channel_destroy(channel);
 }
 
 TEST_P(ChannelzChannelTest, BasicChannelAPIFunctionality) {