Bump minimist, rxjs-tslint, mkdirp and protractor

Bumps [minimist](https://github.com/minimistjs/minimist) to 1.2.8 and updates ancestor dependencies [minimist](https://github.com/minimistjs/minimist), [minimist](https://github.com/minimistjs/minimist), [rxjs-tslint](https://github.com/reactivex/rxjs-tslint), [mkdirp](https://github.com/isaacs/node-mkdirp) 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 `minimist` from 1.2.5 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 `rxjs-tslint` from 0.1.7 to 0.1.8
- [Release notes](https://github.com/reactivex/rxjs-tslint/releases)
- [Changelog](https://github.com/ReactiveX/rxjs-tslint/blob/master/CHANGELOG.md)
- [Commits](https://github.com/reactivex/rxjs-tslint/commits)

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 `protractor` from 5.4.2 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@5.4.2...5.4.4)

---
updated-dependencies:
- dependency-name: minimist
  dependency-type: indirect
- dependency-name: minimist
  dependency-type: indirect
- dependency-name: rxjs-tslint
  dependency-type: direct:production
- dependency-name: mkdirp
  dependency-type: indirect
- dependency-name: protractor
  dependency-type: direct:development
...

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

Author: dependabot[bot]