Bump karma from 6.3.14 to 6.3.16

Bumps [karma](https://github.com/karma-runner/karma) from 6.3.14 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@v6.3.14...v6.3.16)

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

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

package-lock.json

@@ -48,7 +48,7 @@
     "eslint": "^6.7.2",
     "eslint-plugin-vue": "^6.2.2",
     "file-loader": "^6.1.0",
-    "karma": "^6.3.14",
+    "karma": "^6.3.16",
     "karma-chai": "^0.1.0",
     "karma-electron": "^6.3.1",
     "karma-mocha": "^2.0.1",