Support read nested gitignore files

[splincode]

I try to use that instruction:

prettier !package-lock.json . --ignore-path **/.gitignore --check

But my nested .gitignore files were ignored

[Leksat]

Maintainers do not seem inclined to add support for nested ignore-files. See https://github.com/prettier/prettier/issues/4081 But there is a workaround: https://www.npmjs.com/package/prettierignore-monorepo