extmod/asyncio: Add `Task` methods from CPython#13000

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imnotjames wants to merge 7 commits intomicropython:masterfrom

imnotjames:feat/upython/async-tasks

Commits on Nov 19, 2023

Commits on Nov 20, 2023

Commits on Nov 23, 2023

extmod/modasyncio.c: Rely on the generic hash during runtime.
imnotjames
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