Introduce configuration option in custom executor driver API to define if build_script should be used
The entry will inform whether the driver supports step_script
or not. When unset assume that custom executor driver expects build_script
.
It should be introduced at https://gitlab.com/gitlab-org/gitlab-runner/-/blob/5ea708f08e1b48e09dbd302f78af82427b4afc02/executors/custom/api/config.go#L7.
Edited by Tomasz Maczukin