[tracker-oci-images/sam/interruptible] Set 'interruptible' flag on build pipelines

[Sam Thursfield <sthursfield src gnome org>]

commit b4353aca428526e19b2bb368defa31947cd462d0
Author: Sam Thursfield <sam afuera me uk>
Date:   Fri Dec 13 23:01:47 2019 +0100

    Set 'interruptible' flag on build pipelines
    
    This should save resources on the builders by cancelling jobs which
    have been superceded by a new pipeline, for example when you push a
    fix for a problem.
    
    See https://docs.gitlab.com/ee/ci/yaml/README.html#interruptible

 .gitlab-ci.yml | 1 +
 1 file changed, 1 insertion(+)
---
diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 8798140..b7f390a 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -36,6 +36,7 @@ stages:
     before_script:
         - export NAMESPACE="$(echo "${CI_PROJECT_NAMESPACE}" | tr A-Z a-z)"
         - export IMAGE=${CI_REGISTRY}/${NAMESPACE}/${CI_PROJECT_NAME}/${ARCH}/${DISTRO_NAME}:${DISTRO_VER}
+    interruptible: true
     <<: *base_build
 
 fedora:latest: