Bump minimist, mkdirp, karma, handlebars and protractor in /dashboard

Bumps [minimist](https://github.com/minimistjs/minimist) to 1.2.8 and updates ancestor dependencies [minimist](https://github.com/minimistjs/minimist), [mkdirp](https://github.com/isaacs/node-mkdirp), [karma](https://github.com/karma-runner/karma), [handlebars](https://github.com/wycats/handlebars.js) and [protractor](https://github.com/angular/protractor). These dependencies need to be updated together.


Updates `minimist` from 1.2.0 to 1.2.8
- [Release notes](https://github.com/minimistjs/minimist/releases)
- [Changelog](https://github.com/minimistjs/minimist/blob/main/CHANGELOG.md)
- [Commits](minimistjs/minimist@v1.2.0...v1.2.8)

Updates `mkdirp` from 0.5.1 to 0.5.6
- [Release notes](https://github.com/isaacs/node-mkdirp/releases)
- [Changelog](https://github.com/isaacs/node-mkdirp/blob/main/CHANGELOG.md)
- [Commits](isaacs/node-mkdirp@0.5.1...v0.5.6)

Updates `karma` from 1.7.1 to 6.4.1
- [Release notes](https://github.com/karma-runner/karma/releases)
- [Changelog](https://github.com/karma-runner/karma/blob/master/CHANGELOG.md)
- [Commits](karma-runner/karma@1.7.1...v6.4.1)

Updates `handlebars` from 4.0.11 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@v4.0.11...v4.7.7)

Updates `protractor` from 5.1.2 to 5.4.4
- [Release notes](https://github.com/angular/protractor/releases)
- [Changelog](https://github.com/angular/protractor/blob/5.4.4/CHANGELOG.md)
- [Commits](angular/protractor@5.1.2...5.4.4)

---
updated-dependencies:
- dependency-name: minimist
  dependency-type: indirect
- dependency-name: mkdirp
  dependency-type: indirect
- dependency-name: karma
  dependency-type: direct:development
- dependency-name: handlebars
  dependency-type: indirect
- dependency-name: protractor
  dependency-type: direct:development
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]