chore(deps-dev): bump karma-firefox-launcher from 2.1.2 to 2.1.3

Bumps [karma-firefox-launcher](https://github.com/karma-runner/karma-firefox-launcher) from 2.1.2 to 2.1.3.
- [Release notes](https://github.com/karma-runner/karma-firefox-launcher/releases)
- [Changelog](https://github.com/karma-runner/karma-firefox-launcher/blob/master/CHANGELOG.md)
- [Commits](karma-runner/karma-firefox-launcher@v2.1.2...v2.1.3)

---
updated-dependencies:
- dependency-name: karma-firefox-launcher
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>

package.json

@@ -36,7 +36,7 @@
     "karma": "6.4.3",
     "karma-chrome-launcher": "3.2.0",
     "karma-coverage": "2.2.1",
-    "karma-firefox-launcher": "2.1.2",
+    "karma-firefox-launcher": "2.1.3",
     "karma-ie-launcher": "1.0.0",
     "karma-jasmine": "4.0.2",
     "karma-jasmine-html-reporter": "1.7.0",