Bump karma from 6.0.2 to 6.0.4 (#32959)

Bumps [karma](https://github.com/karma-runner/karma) from 6.0.2 to 6.0.4.
- [Release notes](https://github.com/karma-runner/karma/releases)
- [Changelog](https://github.com/karma-runner/karma/blob/master/CHANGELOG.md)
- [Commits](https://github.com/karma-runner/karma/compare/v6.0.2...v6.0.4)

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

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: XhmikosR <xhmikosr@gmail.com>

package.json

@@ -122,7 +122,7 @@
     "hugo-bin": "^0.68.0",
     "ip": "^1.1.5",
     "jquery": "^3.5.1",
-    "karma": "^6.0.2",
+    "karma": "^6.0.4",
     "karma-browserstack-launcher": "1.4.0",
     "karma-chrome-launcher": "^3.1.0",
     "karma-coverage-istanbul-reporter": "^3.0.3",