problems with graceful shutdown on http example

[ederenn]

Name: ederenn yagna version: 0.9.0 OS+lang+version (if applicable): windows, py !!! attach blender-yapapi.log, zipped data-dir !!!

it got stuck on stopping, second ctrl c was needed (might be related to handshake error with one of the nodes, or the other provider being stopped by owner during connection with my node)

```
Shutting down gracefully, please wait a short while or press Ctrl+C to exit immediately...
^CUnclosed client session
client_session: <aiohttp.client.ClientSession object at 0x0000021E989B9190>
HTTP server stopped
['crownstar: running', 'red-coat: running']
['crownstar: stopping', 'red-coat: stopping']
['crownstar: stopping', 'red-coat: stopping']

C:\Users\ederenn\yapapi\examples\http-proxy>
```

[shadeofblue]

again, @ederenn no logs...