Bump handlebars and newman in /azure

Bumps [handlebars](https://github.com/wycats/handlebars.js) to 4.7.7 and updates ancestor dependency [newman](https://github.com/postmanlabs/newman). These dependencies need to be updated together.


Updates `handlebars` from 4.7.6 to 4.7.7
- [Release notes](https://github.com/wycats/handlebars.js/releases)
- [Changelog](https://github.com/handlebars-lang/handlebars.js/blob/master/release-notes.md)
- [Commits](handlebars-lang/handlebars.js@v4.7.6...v4.7.7)

Updates `newman` from 5.1.0 to 5.3.2
- [Release notes](https://github.com/postmanlabs/newman/releases)
- [Changelog](https://github.com/postmanlabs/newman/blob/develop/CHANGELOG.yaml)
- [Commits](postmanlabs/newman@v5.1.0...v5.3.2)

---
updated-dependencies:
- dependency-name: handlebars
  dependency-type: indirect
- dependency-name: newman
  dependency-type: direct:production
...

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

Author: dependabot[bot]