Extend Windows VMs to support CTest status on GitLab
Citing from !402 (merged)
Windows builds currently do not report their CTest status to GitLab. The build VM does not have gitlab-runner installed, which is needed for artifact upload (it does not need to be configured, only installed) and it does not have Python with lxml installed (or any other tool that can apply an XSL transformation to an XML file). Perhaps @eibl could add these the next time he updates the VMs?