BehatCommand default selenium images outdated

[malteschmitz]

Why are the default selenium images used by moodle-plugin-ci behat --start-servers quite outdated? The images are determined by getSeleniumImage in BehatCommand.php and without any further configuration selenium/standalone-firefox:3 is used (and selenium/standalone-chrome:3 for the chrome profile). Why is the version tag :3 included in the image names? This leads to Firefox 92.0.1 released September 23, 2021 being used.

I propose to remove the version tag :3 from the default selenium images in getSeleniumImage such that the latest version of the docker images is used.

[kabalin]

Thanks @malteschmitz, well-spotted! I changed it at #354 to align default version with moodle-docker, so developers get the same version in local tests and here in CI.

If you require specific version, it is possible to pass --selenium option to behat command.