This update for tmux fixes the following issues:

- tmux: Null pointer dereference in window.c (bsc#1207393) (CVE-2022-47016)
- add patch for compactibility with new ncurses fixes bsc#1210552
- disable utf8proc (following upstreams not use it by default on non-macOS) 
- switch to screen-256color as default terminal to fix incompatibility
  with yast2-ruby-testsuite 
- update to 3.3a:
- build with utf8proc enabled
- refresh tmux-socket-path patch: 
  restore ability to overwrite socket path using $TMUX_TMPDIR (bsc#1185572)
- Drop pkgconfig(systemd) BuildRequires: there is no reason to pull
  in systemd into the build.
- Use %tmpfiles_create instead of calling systemd-tmpfiles
  directly.
- Replace systemd_requires with systemd_ordering: tmux is very well
  capable to run without systemd (and by using tmpfiles_create, the
  post script can also cope with the absence of if).