chore(deps): update dependency karma-firefox-launcher to v2.1.2

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
karma-firefox-launcher	2.1.1 -> 2.1.2

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Release Notes

karma-runner/karma-firefox-launcher

### [`v2.1.2`](https://togithub.com/karma-runner/karma-firefox-launcher/blob/master/CHANGELOG.md#​212-httpsgithubcomkarma-runnerkarma-firefox-launchercomparev211v212-2021-11-02) [Compare Source](https://togithub.com/karma-runner/karma-firefox-launcher/compare/v2.1.1...v2.1.2) ##### Bug Fixes - launcher does not kill firefox.exe on WSL ([3954ad4](https://togithub.com/karma-runner/karma-firefox-launcher/commit/3954ad4a23bbc1b5886d33c2c9bf39161a9c5f3c)), closes [/github.com/karma-runner/karma-firefox-launcher/issues/101#issuecomment-891850143](https://togithub.com//github.com/karma-runner/karma-firefox-launcher/issues/101/issues/issuecomment-891850143)

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Configuration

📅 Schedule: "after 1am and before 7am every weekday" in timezone Europe/Paris.

🚦 Automerge: Enabled.

♻ Rebasing: Whenever PR becomes conflicted, or you tick the rebase/retry checkbox.

🔕 Ignore: Close this PR and you won't be reminded about this update again.

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