chore(deps-dev): bump minimist from 1.2.5 to 1.2.6 in /ui-trainer

Bumps [minimist](https://github.com/substack/minimist) from 1.2.5 to 1.2.6.
- [Release notes](https://github.com/substack/minimist/releases)
- [Commits](https://github.com/substack/minimist/compare/1.2.5...1.2.6)

---
updated-dependencies:
- dependency-name: minimist
  dependency-type: direct:development
...

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Author: dependabot[bot]

ui-trainer/package-lock.json

@@ -57,7 +57,7 @@
     "karma-jasmine": "~1.1.2",
     "karma-jasmine-html-reporter": "^0.2.2",
     "kind-of": ">=6.0.3",
-    "minimist": ">=0.2.1",
+    "minimist": ">=1.2.6",
     "node-sass": "^4.12.0",
     "protractor": "~5.4.0",
     "serialize-javascript": ">=3.1.0",