Bump @hapi/hapi from 20.3.0 to 21.4.0

Bumps [@hapi/hapi](https://github.com/hapijs/hapi) from 20.3.0 to 21.4.0.
- [Release notes](https://github.com/hapijs/hapi/releases)
- [Commits](hapijs/hapi@v20.3.0...v21.4.0)

---
updated-dependencies:
- dependency-name: "@hapi/hapi"
  dependency-type: direct:development
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]