build(deps): bump minimist, tslint, sass-lint and mkdirp

Bumps [minimist](https://github.com/minimistjs/minimist) to 1.2.8 and updates ancestor dependencies [minimist](https://github.com/minimistjs/minimist), [tslint](https://github.com/palantir/tslint), [sass-lint](https://github.com/sasstools/sass-lint) and [mkdirp](https://github.com/isaacs/node-mkdirp). These dependencies need to be updated together.


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

Updates `minimist` from 0.2.0 to 1.2.8
- [Changelog](https://github.com/minimistjs/minimist/blob/main/CHANGELOG.md)
- [Commits](https://github.com/minimistjs/minimist/compare/v1.2.0...v1.2.8)

Updates `tslint` from 4.0.2 to 6.1.3
- [Release notes](https://github.com/palantir/tslint/releases)
- [Changelog](https://github.com/palantir/tslint/blob/master/CHANGELOG.md)
- [Commits](https://github.com/palantir/tslint/compare/4.0.2...6.1.3)

Updates `sass-lint` from 1.12.1 to 1.13.0
- [Release notes](https://github.com/sasstools/sass-lint/releases)
- [Changelog](https://github.com/sasstools/sass-lint/blob/develop/CHANGELOG.md)
- [Commits](https://github.com/sasstools/sass-lint/compare/v1.12.1...v1.13.0)

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

---
updated-dependencies:
- dependency-name: minimist
  dependency-type: indirect
- dependency-name: minimist
  dependency-type: indirect
- dependency-name: tslint
  dependency-type: direct:production
- dependency-name: sass-lint
  dependency-type: indirect
- dependency-name: mkdirp
  dependency-type: indirect
...

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

package.json

@@ -6,7 +6,7 @@
     "license": "SEE LICENSE IN license",
     "dependencies": {
         "rxjs": "^5.0.1",
-        "tslint": "4.0.2",
+        "tslint": "6.1.3",
         "zone.js": "^0.8.4",
         "core-js": "^2.4.1",
         "systemjs": "^0.19.40",