Merge pull request #3179 from kubernetes-incubator/removeubuntu18

move ubuntu18 to CI part2

.gitlab-ci.yml

@@ -334,8 +334,10 @@ gce_coreos-calico-aio:
   except: ['triggers']
   only: [/^pr-.*$/]
 
+### PR JOBS PART2
+
 gce_ubuntu18-flannel-aio:
-  stage: deploy-part1
+  stage: deploy-part2
   <<: *job
   <<: *gce
   variables:
@@ -345,7 +347,6 @@ gce_ubuntu18-flannel-aio:
   except: ['triggers']
   only: [/^pr-.*$/]
 
-### PR JOBS PART2
 gce_centos7-flannel-addons:
   stage: deploy-part2
   <<: *job