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

[renovate-bot]

This PR contains the following updates:

Package	Type	Update	Change
karma-firefox-launcher	devDependencies	major	^1.1.0 -> ^2.0.0

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Release Notes

karma-runner/karma-firefox-launcher

v2.0.0

Compare Source

Bug Fixes

• Bypass WSL check if Firefox is present in WSL environment (23a5d10), closes #​107
• Update is-wsl to v2.2.0 to detect docker under WSL (#​116) (c585393)

Features

• Make Node 10 minimum required version (480dafd), closes #​118

BREAKING CHANGES

• Changed minimum required version of node.js from 8 to 10.

Node 8 EOL was 2019-12-31.

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[codecov]

Codecov Report

Merging #1082 into master will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master    #1082   +/-   ##
=======================================
  Coverage   91.70%   91.70%           
=======================================
  Files          21       21           
  Lines        4145     4145           
  Branches      497      497           
=======================================
  Hits         3801     3801           
  Misses        344      344           

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