Vim: v9.1.0990

* vim cd96075cd...202ebc6ce (4):
  > runtime(zsh): sync syntax script with upstream repo
  > runtime(doc): Capitalise the mnemonic "Zero" for the 'z' flag of search()
  > patch 9.1.0990: Inconsistent behavior when changing cmdheight
  > patch 9.1.0989: Vim9: Whitespace after the final enum value causes a syntax error

https://github.com/vim/vim-appimage/actions/runs/12624666959