guests: Add macOS 10.15
Note that I haven't actually tried running lcitool update or lcitool build against a macOS machine: I've tested the Dockerfile generator (using the --variables option introduced by !30 (merged)) only.
The 17.0 major release is coming on May 16, 2024! This version brings many exciting improvements to GitLab, but also removes some deprecated features. We are introducing three breaking change windows during which we expect breaking changes to be deployed to GitLab.com. You can read more about it on our blogpost. The second breaking change window begins 2024-04-29 09:00 UTC and ends 2024-05-01 22:00 UTC.
Note that I haven't actually tried running lcitool update or lcitool build against a macOS machine: I've tested the Dockerfile generator (using the --variables option introduced by !30 (merged)) only.