upgrade(deps): bump karma-coverage from 2.2.0 to 2.2.1

Bumps [karma-coverage](https://github.com/karma-runner/karma-coverage) from 2.2.0 to 2.2.1.
- [Release notes](https://github.com/karma-runner/karma-coverage/releases)
- [Changelog](https://github.com/karma-runner/karma-coverage/blob/master/CHANGELOG.md)
- [Commits](karma-runner/karma-coverage@v2.2.0...v2.2.1)

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

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

packages/sui-test/package.json

@@ -30,7 +30,7 @@
     "commander": "8.3.0",
     "karma": "6.4.2",
     "karma-chrome-launcher": "3.2.0",
-    "karma-coverage": "2.2.0",
+    "karma-coverage": "2.2.1",
     "karma-firefox-launcher": "2.1.2",
     "karma-mocha": "2.0.1",
     "karma-spec-reporter": "0.0.34",