Vim: v9.0.1833

* vim 1bed993c0...816fbcc26 (10):
  > patch 9.0.1833: [security] runtime file fixes
  > patch 9.0.1832: xxd: reporting wrong version
  > patch 9.0.1831: Vim9: failing null test
  > patch 9.0.1830: Vim9: crash when accessing a null object
  > patch 9.0.1829: Vim9 missing access-checks for private vars
  > patch 9.0.1828: cursor wrong with virt text before double-width char
  > translation(it): updated Italian manpages
  > patch 9.0.1827: xxd: no color support
  > runtime(optwin): Fix for 'splitkeep' option (#12974)
  > runtime(forth): Update syntax and ftplugin files (#12976)

https://github.com/vim/vim-appimage/actions/runs/6044033909