Bump grunt-karma from 4.0.0 to 4.0.2

Bumps [grunt-karma](https://github.com/karma-runner/grunt-karma) from 4.0.0 to 4.0.2.
- [Release notes](https://github.com/karma-runner/grunt-karma/releases)
- [Changelog](https://github.com/karma-runner/grunt-karma/blob/master/CHANGELOG.md)
- [Commits](karma-runner/grunt-karma@v4.0.0...v4.0.2)

---
updated-dependencies:
- dependency-name: grunt-karma
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

package.json

@@ -52,7 +52,7 @@
     "grunt-browserify": "^6.0.0",
     "grunt-contrib-clean": "^2.0.0",
     "grunt-contrib-copy": "^1.0.0",
-    "grunt-karma": "^4.0.0",
+    "grunt-karma": "^4.0.2",
     "grunt-mkdir": "^1.1.0",
     "grunt-sass": "^3.1.0",
     "jasmine-core": "^4.0.0",