v4.2.1

What's Changed

• ci: skip test jobs on tags (tags only publish) by @FeodorFitsner in #222
• fix(darwin): framework-ize ctypes .dylib libs so they load on the iOS simulator by @ndonkoHenri in #223
• Bump to 4.2.1: iOS ctypes .dylib simulator fix + _multiprocessing by @FeodorFitsner in #224
• ci: Zizmor security hardening by @ndonkoHenri in #212

Full Changelog: v4.2.0...v4.2.1