Bump karma from 5.1.1 to 6.3.16

Bumps [karma](https://github.com/karma-runner/karma) from 5.1.1 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/v5.1.1...v6.3.16)

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

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

package.json

@@ -73,7 +73,7 @@
     "codelyzer": "^6.0.0",
     "jasmine-core": "^3.4.0",
     "jasmine-spec-reporter": "4.2.1",
-    "karma": "^5.1.1",
+    "karma": "^6.3.16",
     "karma-chrome-launcher": "2.2.0",
     "karma-cli": "2.0.0",
     "karma-coverage-istanbul-reporter": "^2.0.5",