Refactor and add new environment functionality to CI yaml reference
What does this MR do?
Add new environment
functionality to the yaml reference.
What are the relevant issue numbers?
Part of https://gitlab.com/gitlab-org/gitlab-ce/issues/23484
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 third breaking change window begins 2024-05-06 09:00 UTC and ends 2024-05-08 22:00 UTC.
Add new environment
functionality to the yaml reference.
Part of https://gitlab.com/gitlab-org/gitlab-ce/issues/23484