BaseDownloader.fetch passes coroutine to asyncio.wait which is forbidden in python 3.11

[EamonTracey]

Python 3.8 deprecated passing coroutines to asyncio.wait and Python 3.11 will now raise an error. This causes the BaseDownloader.fetch call to fail on Python 3.11

pulpcore/pulpcore/download/base.py

Line 185 in 9dbcc88

done, _ = asyncio.get_event_loop().run_until_complete(asyncio.wait([self.run()]))

.

Python provides the solution in the error message: "Passing coroutines is forbidden, use tasks explicitly."

I believe this can be fixed by explicitly converting the coroutine to a task using asyncio's create_task

[mdellweg]

Honestly why is it wrapped inside asyncio.wait anyway?
Also please read the python docs carefully about when things got added. There was confusion about the availability of create_task vs. ensure_future depending on the python version before.
We need to maintain at least python 3.8 compatibility.