[Pitch] Generalize `AsyncSequence` and `AsyncIteratorProtocol`

Evolution Pitches
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21

This pitch was reviewed, accepted, and implemented for Swift 6.0: swift-evolution/proposals/0421-generalize-async-sequence.md at main · apple/swift-evolution · GitHub

22

Ah Amazing, sorry I was looking at the wrong link and thought it still needed to go through review :smile: