Bump handlebars from 4.0.6 to 4.2.0
Bump handlebars from 4.0.6 to 4.2.0

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] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@dependabot.com>
spring-cloud/spring-cloud-release-tools,spring-cloud/spring-cloud-release-tools,spring-cloud/spring-cloud-release-tools,spring-cloud/spring-cloud-release-tools,spring-cloud/spring-cloud-release-tools,spring-cloud/spring-cloud-release-tools