Fixed asynch.h compile

include/spdlog/async.h

@@ -71,8 +71,8 @@ inline std::shared_ptr<spdlog::logger> create_async_nb(std::string logger_name,
 // set global thread pool.
 inline void init_thread_pool(size_t q_size, size_t thread_count, std::function<void()> on_thread_start, std::function<void()> on_thread_stop)
 {
-    auto tp = std::make_shared<details::thread_pool>(q_size, thread_count, on_thread_start, on_thread_stop);
-    details::registry::instance().set_tp(std::move(tp));
+    details::s_thread_pool = std::make_shared<details::thread_pool>(q_size, thread_count, on_thread_start, on_thread_stop);
+    
 }
 
 inline void init_thread_pool(size_t q_size, size_t thread_count, std::function<void()> on_thread_start)