Add support for Windows 20H2
Related to gitlab-org/gitlab-runner#27220 (closed)
This MR also removes 1903 and 1909 as we don't support them anymore in gitlab-runner.
Edited by Pedro Pombeiro
Related to gitlab-org/gitlab-runner#27220 (closed)
This MR also removes 1903 and 1909 as we don't support them anymore in gitlab-runner.