based on https://framadate.org/jVSQHwIGfJYy82IL close #1793
Dropped support for `DRONE_*` environment variables in pipeline steps. Pipeline meta-data can be accessed with `CI_*` variables. - `CI_*` prefix replaces `DRONE_*` - `CI` value is now `woodpecker` - `DRONE=true` has been removed
* update pipeline samples * update docs * use woodpeckerci/plugin-git:latest as default * code format nit
* Refactor: move cncd/pipeline/ to pipeline/ * Refactor: move pipeline/pipeline/ to pipeline/