Supporting Python 3.11

[lietu]

Before patches crashes with something like:

Traceback (most recent call last):
  File "/usr/local/bin/multi-start", line 8, in <module>
    sys.exit(cli())
             ^^^^^
  File "/opt/pipx/venvs/multi-start/lib/python3.11/site-packages/src/cli.py", line 101, in main
    asyncio.run(
  File "/usr/lib/python3.11/asyncio/runners.py", line 188, in run
    return runner.run(main)
           ^^^^^^^^^^^^^^^^
  File "/usr/lib/python3.11/asyncio/runners.py", line 120, in run
    return self._loop.run_until_complete(task)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3.11/asyncio/base_events.py", line 650, in run_until_complete
    return future.result()
           ^^^^^^^^^^^^^^^
  File "/opt/pipx/venvs/multi-start/lib/python3.11/site-packages/src/starter.py", line 201, in start
    await asyncio.wait(tasks, return_when=asyncio.FIRST_COMPLETED)
  File "/usr/lib/python3.11/asyncio/tasks.py", line 420, in wait
    raise TypeError("Passing coroutines is forbidden, use tasks explicitly.")
TypeError: Passing coroutines is forbidden, use tasks explicitly.
sys:1: RuntimeWarning: coroutine 'Event.wait' was never awaited
sys:1: RuntimeWarning: coroutine 'Process.wait' was never awaited

After patch works fine. Not really sure why Python devs would prefer adding extra boilerplate, but it works with both old and new versions, supported in this form in 3.7+.

[lietu]

https://docs.python.org/3.11/library/asyncio-task.html#asyncio.create_task