Bump karma from 2.0.5 to 3.0.0 in /js

Bumps [karma](https://github.com/karma-runner/karma) from 2.0.5 to 3.0.0.
- [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/v2.0.5...v3.0.0)

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

js/package.json

@@ -25,7 +25,7 @@
     "babel-loader": "^7.1.5",
     "babel-preset-env": "^1.7.0",
     "css-loader": "^1.0.0",
-    "karma": "^2.0.5",
+    "karma": "^3.0.0",
     "mini-css-extract-plugin": "^0.4.1",
     "node-sass": "^4.9.2",
     "webpack": "^4.16.5",