mgr/dashboard: bump ng-mocks in /src/pybind/mgr/dashboard/frontend

Bumps [ng-mocks](https://github.com/help-me-mom/ng-mocks) from 14.3.0 to 14.13.1.
- [Release notes](https://github.com/help-me-mom/ng-mocks/releases)
- [Changelog](https://github.com/help-me-mom/ng-mocks/blob/master/CHANGELOG.md)
- [Commits](help-me-mom/ng-mocks@v14.3.0...v14.13.1)

---
updated-dependencies:
- dependency-name: ng-mocks
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

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