Sync with canonical Async.AwaitTaskCorrect

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In isolating https://github.com/dotnet/fsharp/issues/13165, the fact that the AwaitTaskCorrect impl herein predates the current fsssnip edition, and that the task.InnerException is subtle led me down additional paths that would be nice to avoid, especially given that ultimately there should be convergence in the implementations via https://github.com/fsharp/fslang-suggestions/issues/840.

• Equinox already had the canonical edition, which has had lots of road testing
• Similar PR canonicalizing https://github.com/jet/FsKafka/pull/92 ()
• Synced in Propulsion project as that had cloned FsKafka https://github.com/jet/propulsion/commit/3c11142b75bf3b0ef2181fd106a4b17c0b2313ef

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NOTE there are two behavior changes here:

• task.IsCancelled now triggers a different exception (TaskCanceledException, was OperationCanceledException)
• task.IsCancelled triggers the ee exception continuation, rather than the ec cancellation one

Ran this past @eiriktsarpalis; he confirmed there is no useful variation in the impl herein

ASIDE: Having a immediate release for this is not critical for me as I'm comfortable there is no consequential behavior change that I need - hopefully I'll get around to doing cleanup on TransactWriteItems and it can accompany that on the train