win,loop: add missing uv_update_time (#3175)

Time of loop should be updated after the IOCP wait.

src/win/core.c

@@ -631,6 +631,7 @@ int uv_run(uv_loop_t *loop, uv_run_mode mode) {
        * UV_RUN_NOWAIT makes no guarantees about progress so it's omitted from
        * the check.
        */
+      uv_update_time(loop);
       uv__run_timers(loop);
     }