Bump handlebars from 4.0.6 to 4.5.3 in /e2e-tests/src
Bump handlebars from 4.0.6 to 4.5.3 in /e2e-tests/src

Bumps [handlebars](https://github.com/wycats/handlebars.js) from 4.0.6 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](https://github.com/wycats/handlebars.js/compare/v4.0.6...v4.5.3)

Signed-off-by: dependabot[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@github.com>
agave/ah-microservices,agave/ah-microservices,agave/ah-microservices