Bump handlebars from 4.2.1 to 4.5.3 (jhen0409#451)

Bumps [handlebars](https://github.com/wycats/handlebars.js) from 4.2.1 to 4.5.3.
- [Release notes](https://github.com/wycats/handlebars.js/releases)
- [Changelog](https://github.com/wycats/handlebars.js/blob/master/release-notes.md)
- [Commits](handlebars-lang/handlebars.js@v4.2.1...v4.5.3)

Signed-off-by: dependabot[bot] <[email protected]>