fix(profiling) segfault on close

Author: JonasBa

packages/profiling-node/bindings/cpu_profiler.cc

@@ -113,7 +113,12 @@ class MeasurementsTicker {
 
   void Cleanup() {
     uv_timer_stop(&timer);
-    uv_close(reinterpret_cast<uv_handle_t *>(&timer), nullptr);
+
+    auto handle = reinterpret_cast<uv_handle_t *>(&timer);
+
+    if(!uv_is_closing(handle)) {
+      uv_close(handle, free_timer_callback);
+    }
   }
 };