Bump karma from 2.0.4 to 6.3.16

Bumps [karma](https://github.com/karma-runner/karma) from 2.0.4 to 6.3.16.
- [Release notes](https://github.com/karma-runner/karma/releases)
- [Changelog](https://github.com/karma-runner/karma/blob/master/CHANGELOG.md)
- [Commits](https://github.com/karma-runner/karma/compare/v2.0.4...v6.3.16)

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

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

package.json

@@ -11,7 +11,7 @@
     "eslint-config-airbnb-base": "^13.0.0",
     "eslint-plugin-import": "^2.13.0",
     "http-server": "^0.11.1",
-    "karma": "^2.0.4",
+    "karma": "^6.3.16",
     "karma-junit-reporter": "^0.2.2",
     "protractor": "^5.3.2",
     "shelljs": "^0.2.6",