Bumps [yamllint](https://github.com/adrienverge/yamllint) from 1.19.0 to 1.20.0. - [Release notes](https://github.com/adrienverge/yamllint/releases) - [Changelog](https://github.com/adrienverge/yamllint/blob/master/CHANGELOG.rst) - [Commits](https://github.com/adrienverge/yamllint/compare/v1.19.0...v1.20.0) Signed-off-by: dependabot-preview[bot] <support@dependabot.com>