Bump karma from 5.0.2 to 5.0.3

Bumps [karma](https://github.com/karma-runner/karma) from 5.0.2 to 5.0.3.
- [Release notes](https://github.com/karma-runner/karma/releases)
- [Changelog](https://github.com/karma-runner/karma/blob/master/CHANGELOG.md)
- [Commits](karma-runner/karma@v5.0.2...v5.0.3)

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

package.json

@@ -35,7 +35,7 @@
     "grunt-karma": "^4.0.0",
     "jasmine-core": "^3.5.0",
     "jshint-stylish": "^2.2.1",
-    "karma": "^5.0.2",
+    "karma": "^5.0.3",
     "karma-chrome-launcher": "^3.1.0",
     "karma-coverage": "^2.0.2",
     "karma-jasmine": "^3.1.1",