Bump to Python 3.13

[sylvainpelissier]

No description provided.

[bbjubjub2494]

This introduces an error. I am looking into it

Unhandled exception in client_connected_cb
transport: <_SelectorSocketTransport closed fd=7>
Traceback (most recent call last):
  File "/usr/local/lib/python3.11/site-packages/helloweb3/__init__.py", line 24, in client_connected_cb
    await handle_with_actions(conn, cls.actions())
  File "/usr/local/lib/python3.11/site-packages/helloweb3/actions.py", line 37, in handle_with_actions
    await action.handler(conn)
  File "/usr/local/lib/python3.11/site-packages/helloweb3/pwn.py", line 28, in _get_flag
    await chal.get_flag(conn)
  File "/usr/local/lib/python3.11/site-packages/helloweb3/pwn.py", line 43, in get_flag
    if await self.is_solved():
       ^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/local/lib/python3.11/site-packages/helloweb3/pwn.py", line 51, in is_solved
    await self.async_web3.eth.call(
          ^^^^^^^^^^^^^^^
  File "/usr/local/lib/python3.11/site-packages/helloweb3/anvil.py", line 51, in async_web3
    return AsyncWeb3(Web3.AsyncHTTPProvider(f"http://127.0.0.1:8545/{self.token}"))
                     ^^^^^^^^^^^^^^^^^^^^^^
AttributeError: type object 'Web3' has no attribute 'AsyncHTTPProvider'
```

[bbjubjub2494]

Thanks!