Bump handlebars from 4.0.+ to 4.3.0
Bump handlebars from 4.0.+ to 4.3.0

Bumps [handlebars](https://github.com/jknack/handlebars.java) from 4.0.+ to 4.3.0.
- [Release notes](https://github.com/jknack/handlebars.java/releases)
- [Commits](https://github.com/jknack/handlebars.java/commits/v4.3.0)

---
updated-dependencies:
- dependency-name: com.github.jknack:handlebars
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@github.com>
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