Is there any reason multipart-kit requires macOS 10.15?

[adam-fowler]

No description provided.

[0xTim]

Likely a hang up as it was extracted from Vapor. There's nothing that requires 10.15 in here at the moment though Vapor packages took the approach of adding it to everything to avoid breaking changes at later dates.

I'm pretty sure we could add it in if needed in a non-breaking change as SwiftPM should resolve it correctly and just pick the oldest version right? I can't imagine us needed to use Crypto, which is the only thing that mandates 10.15 in the chain, so I'm happy to open this up.

Thoughts @siemensikkema?

[siemensikkema]

+1 on removing the restriction 👌🏻