v1.12.0 - Mostly internal improvements

libtmux: Update to v0.12

libtmux 0.11 -> 0.12: https://libtmux.git-pull.com/history.html#libtmux-0-12-0-2022-07-13

These improvements in libtmux set the state to full type annotations. Then larger-scale refactors will be made to revamp and modernize APIs.

Test improvements

• Fix automatic rename by @tony in #774
• convert calls to retry to retry_until by @categulario in #777
• Use retry_until in more places by @tony in #781
• use /etc instead of /usr/sbin which could be a symlink by @categulario in #783

New Contributors

• @categulario made their first contribution in #777

Full Changelog: v1.11.1...v1.12.0