gzip: Update to 1.12 - Githubissues

This PR updates gzip to its latest released version, 1.12. Tested on iOS 12 and macOS 12.6.1, building on macOS.

[x] Have you made sure there aren't any other open Pull Requests for the same update/change?
[ ] This Pull Request doesn't contain any package additions; it's a small change (e.g README change)
[x] Have you confirmed this builds & works as intended on an iOS device (if applicable)?
[x] Have you confirmed this builds & works as intended on a macOS device (if applicable)?

ProcursusTeam / Procursus