Bumps [to-vfile](https://github.com/vfile/to-vfile) from 5.0.1 to 6.1.0. - [Release notes](https://github.com/vfile/to-vfile/releases) - [Commits](https://github.com/vfile/to-vfile/compare/5.0.1...6.1.0) Signed-off-by: dependabot[bot] <support@github.com>