Use valid value for CGO_ENABLED
Currently, CGO_ENABLED is a int, rather than a string. While CI runs on GitLab.com do not seem to fail due to this, local runners do not accept this value.
15:29 $ gitlab-runner exec docker verify
Runtime platform arch=amd64 os=linux pid=8785 revision=003fe500 version=12.7.1
FATAL: invalid value for variable "CGO_ENABLED"
Edited by Hayley Swimelar