Hyperlinks not working on Windows with request_repaint_after

**Describe the bug**

When clicking on an hyperlink on Windows, on version `0.19.0`, I'm getting the following error:

```
thread 'main' panicked at 'either event handler is re-entrant (likely), or no event handler is registered (very unlikely)', \vendor\winit\src\platform_impl\windows\event_loop\runner.rs:242:18
```

**To Reproduce**

Create an agui app with an hyperlink, call request_repaint_after, and click it:

```
fn update(&mut self, ctx: &egui::Context, _frame: &mut eframe::Frame) {

CentralPanel::default().show(ctx, |ui| {
let text = "Google";
let url = "https://www.google.com";
let link = Hyperlink::from_label_and_url(text, url);
ui.add(link);
});

ctx.request_repaint_after(Duration::from_millis(100));
}
```