Bump karma from 1.2.0 to 6.3.16 in /gateleen-hook-js

Bumps [karma](https://github.com/karma-runner/karma) from 1.2.0 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](karma-runner/karma@v1.2.0...v6.3.16)

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

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

gateleen-hook-js/package.json

@@ -35,7 +35,7 @@
     "grunt-ngdocs": "0.2.10",
     "jasmine-core": "2.5.0",
     "jshint": "2.9.3",
-    "karma": "1.2.0",
+    "karma": "6.3.16",
     "karma-chrome-launcher": "2.2.0",
     "karma-coverage": "1.1.1",
     "karma-html-reporter": "0.2.7",