Bumps [handlebars](https://github.com/jknack/handlebars.java) from 4.0.6 to 4.2.0. - [Release notes](https://github.com/jknack/handlebars.java/releases) - [Commits](https://github.com/jknack/handlebars.java/compare/v4.0.6...v4.2.0) Signed-off-by: dependabot-preview[bot] <support@dependabot.com>