Vim: v9.1.1924

* vim ed4af756c...a08030c9f (11):
  > patch 9.1.1924: 'commentstring' requires +folding feature
  > patch 9.1.1923: wrong error when assigning to read-only register
  > runtime(vim): Update base syntax, match :debug and :break* commands
  > runtime(compiler): set errorformat where missing
  > runtime(php): Update indent script to 1.76 (from 1.75)
  > runtime(haskell): allow spaces in backticked operators in syntax script
  > patch 9.1.1922: Wrong virtcol('$') with virtual text at EOL
  > patch 9.1.1921: xdiff: included xdiff code is outdated
  > patch 9.1.1920: tests: not enough testing for wildtrigger() pum redrawing
  > CI: Switch to macOS 26 runner
  > runtime(c): Update signal constants in syntax script

https://github.com/vim/vim-appimage/actions/runs/19556635793

Author: github-actions[bot]