Bump karma-browserify from 5.3.0 to 6.1.0

Bumps [karma-browserify](https://github.com/nikku/karma-browserify) from 5.3.0 to 6.1.0.
- [Release notes](https://github.com/nikku/karma-browserify/releases)
- [Commits](nikku/karma-browserify@v5.3.0...v6.1.0)

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

Author: dependabot-preview[bot]

package.json

@@ -84,7 +84,7 @@
     "jasmine-core": "^2.5.2",
     "jsdoc": "^3.5.5",
     "karma": "^4.4.1",
-    "karma-browserify": "^5.1.1",
+    "karma-browserify": "^6.1.0",
     "karma-chrome-launcher": "^2.0.0",
     "karma-cli": "^1.0.1",
     "karma-coverage": "^2.0.1",