[Woo POS] Consider making the AnyPublisher async extension generally available

[joshheald]

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          Do you think it's worth making this available for other use cases? Like an extension like AnyPublisher+Async.

Originally posted by @jaclync in https://github.com/woocommerce/woocommerce-ios/pull/12928#discussion_r1625301635

[dangermattic]

Thanks for reporting! 👍

[malinajirka]

This has been open for a long time and hasn't been prioritized, I'm closing it. Having said that, feel free to re-open it if you believe it's worth working on.

[joshheald]

CC @iamgabrielma I think I recommended this to you at some point for an issue you were having; did you end up needing the async combine modifier?

[iamgabrielma]

Thanks for the ping. I don't recall the exact context, I don't think I've had to use it so far but I can see how it would be helpful to adapt pieces of payments to async await as we go.

Something worth noting is that there was an update to the original article a month/couple of months after we implemented this solution, where it could be possible that the Publisher completes without emitting a value. So it could be worth revisiting/testing it if we happen to make a generally-available extension from this.