2.4.0

Merged next PRs from open requests in original repository:

• Updated Swift and fixed deprecations - John Mueller;
• Allowed to use pipes - Emil Sojtaszek;
• Closing pipes after reading - Annalise Mariottini;
• Added zsh shell path option - Leonardo Diaz;
• Varios minor fixes and improvements - Maxim Lanskoy.

ShellOut 2.3.1

This release introduces updated Swift toolchain version (5.9+)