This update for powerline fixes the following issues:

- Fix TypeError with python 3.13 in vim status line; upstream PR + test fix
- Update to version 2.8.4:
  * Minor improvements and bug fixes.
- Remove manual python script hashbangs fix, that's done now
  automatically by the %python_install macro.
  Fix problem of package requiring /usr/bin/python3.11.11
- Only recommend python311-i3ipc if i3 is installed
- Make git-core a suitable alternative instead of python311-pygit2
- Fix powerline requiring both python2 and python3
  * Added `output` option to i3wm.workspaces segment to filter workspaces based on