build(deps-dev): bump karma-firefox-launcher from 2.1.0 to 2.1.1

Bumps [karma-firefox-launcher](https://github.com/karma-runner/karma-firefox-launcher) from 2.1.0 to 2.1.1.
- [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@v2.1.0...v2.1.1)

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

Author: dependabot-preview[bot]

yarn.lock

@@ -2609,9 +2609,9 @@ karma-chrome-launcher@^3.1.0:
     which "^1.2.1"
 
 karma-firefox-launcher@^2.1.0:
-  version "2.1.0"
-  resolved "https://registry.yarnpkg.com/karma-firefox-launcher/-/karma-firefox-launcher-2.1.0.tgz#d0d328c93dfcf9b46f1ac83b4bb32f43aadb2050"
-  integrity sha512-dkiyqN2R6fCWt78rciOXJLFDWcQ7QEQi++HgebPJlw1y0ycDjGNDHuSrhdh48QG02fzZKK20WHFWVyBZ6CPngg==
+  version "2.1.1"
+  resolved "https://registry.yarnpkg.com/karma-firefox-launcher/-/karma-firefox-launcher-2.1.1.tgz#6457226f8e4f091b664cef79bb5d39bf1e008765"
+  integrity sha512-VzDMgPseXak9DtfyE1O5bB2BwsMy1zzO1kUxVW1rP0yhC4tDNJ0p3JoFdzvrK4QqVzdqUMa9Rx9YzkdFp8hz3Q==
   dependencies:
     is-wsl "^2.2.0"
     which "^2.0.1"