Bump ember-data from 3.22.1 to 4.6.3 in /smoke-test-app

Bumps [ember-data](https://github.com/emberjs/data) from 3.22.1 to 4.6.3.
- [Release notes](https://github.com/emberjs/data/releases)
- [Changelog](https://github.com/emberjs/data/blob/v4.6.3/CHANGELOG.md)
- [Commits](emberjs/data@v3.22.1...v4.6.3)

---
updated-dependencies:
- dependency-name: ember-data
  dependency-type: direct:development
  update-type: version-update:semver-major
...

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