We won't use it till the tests land, and the fd.o runners are getting overloading causing jobs to fail with 500 error during artifact upload. [1] Thus disable this feature temporarly. [1]: https://gitlab.freedesktop.org/freedesktop/freedesktop/issues/44
This is meant to be used with the `include:` featrue of gitlab [1] in order to provide the same CI pipeline for all the gstreamer modules. [1] https://docs.gitlab.com/ce/ci/yaml/README.html#include