chore(deps-dev): bump karma from 5.1.0 to 6.3.16

Bumps [karma](https://github.com/karma-runner/karma) from 5.1.0 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@v5.1.0...v6.3.16)

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

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

package.json

@@ -95,7 +95,7 @@
     "flow-bin": "^0.128.0",
     "husky": "^4.2.5",
     "istanbul": "^0.4.5",
-    "karma": "^5.1.0",
+    "karma": "^6.3.16",
     "karma-chai": "^0.1.0",
     "karma-chrome-launcher": "^3.1.0",
     "karma-cli": "^2.0.0",