lint-staged

Add new option --hide-all for hiding all unstaged changes and untracked files, before running tasks. This makes it easier to run tools like Knip which check for unused code. Untracked files are included in the backup stash and restored automatically after running.

Lint-staged now runs git update-index --again after running tasks, instead of git add <originally staged files>. This should improve compatibility when using non-default indexes, for example when committing with a pathspec git commit -m "message" . instead of adding files to the index.

All tests now pass on the Bun runtime (latest).

Remove manual handling for git stash --keep-index resurrecting deleted files, because the issue was fixed in Git 2.23.0 and lint-staged requires at least Git 2.32.0.

Fix documentation about multiple config files and the --cwd option. When using it, all tasks will be run in the specified directory. For example, to run everything in the actual process.cwd(), use lint-staged --cwd=".".