Bump karma-firefox-launcher from 1.1.0 to 1.2.0
Bump karma-firefox-launcher from 1.1.0 to 1.2.0

Bumps [karma-firefox-launcher](https://github.com/karma-runner/karma-firefox-launcher) from 1.1.0 to 1.2.0.
- [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](https://github.com/karma-runner/karma-firefox-launcher/compare/v1.1.0...v1.2.0)

Signed-off-by: dependabot-preview[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@dependabot.com>
openlayers/openlayers,adube/ol3,adube/ol3,adube/ol3,stweil/ol3,stweil/openlayers,openlayers/openlayers,bjornharrtell/ol3,geekdenz/ol3,stweil/openlayers,ahocevar/openlayers,ahocevar/openlayers,oterral/ol3,stweil/ol3,geekdenz/ol3,ahocevar/ol3,geekdenz/openlayers,stweil/ol3,geekdenz/openlayers,ahocevar/ol3,openlayers/openlayers,stweil/ol3,geekdenz/ol3,geekdenz/ol3,ahocevar/ol3,bjornharrtell/ol3,geekdenz/openlayers,oterral/ol3,stweil/openlayers,ahocevar/openlayers,ahocevar/ol3,oterral/ol3,bjornharrtell/ol3