Jenkinsfile: move building e2e image to "unit-vendor" stage
Jenkinsfile: move building e2e image to "unit-vendor" stage

Signed-off-by: Sebastiaan van Stijn <64b2b6d12bfe4baae7dad3d018f8cbf6b0e7a044@gone.nl>

konstruktoid/docker-upstream,djs55/docker,vdemeester/docker,nawawi/docker,moul/docker,moul/docker,Ramzec/docker,nalind/docker,flavio/docker,kolyshkin/moby,flavio/docker,kojiromike/docker,yosifkit/docker,cpuguy83/docker,trebonian/docker,Mokolea/docker,flavio/docker,cpuguy83/docker,SvenDowideit/docker,justincormack/docker,jimjag/docker,Mokolea/docker,paralin/docker,nawawi/docker,ibuildthecloud/docker,bearstech/moby,jimjag/docker,AkihiroSuda/docker,ibuildthecloud/docker,nawawi/docker,estesp/docker,konstruktoid/docker-1,nawawi/docker,jvanz/docker,pradipd/moby,dims/docker,konstruktoid/docker-upstream,bearstech/moby,jameszhan/docker,moby/moby,thaJeztah/docker,vdemeester/docker,Ramzec/docker,docker/docker,AkihiroSuda/docker,moby/moby,gnailuy/docker,ibuildthecloud/docker,kojiromike/docker,paralin/docker,Ramzec/docker,nalind/docker,nalind/docker,AkihiroSuda/docker,yongtang/docker,moby/moby,yosifkit/docker,ibuildthecloud/docker,trebonian/docker,paralin/docker,tmp6154/docker,mahak/docker,konstruktoid/docker-upstream,Mokolea/docker,jimjag/docker,thaJeztah/docker,docker/docker,mahak/docker,jvanz/docker,bearstech/moby,gnailuy/docker,konstruktoid/docker-upstream,cpuguy83/docker,AkihiroSuda/docker,Mokolea/docker,jimjag/docker,djs55/docker,yosifkit/docker,cpuguy83/docker,gnailuy/docker,nalind/docker,moul/docker,yosifkit/docker,kojiromike/docker,dims/docker,bearstech/moby,pradipd/moby,gnailuy/docker,ibuildthecloud/docker,paralin/docker,jameszhan/docker,flavio/docker,estesp/docker,jthelin/docker,jthelin/docker,mahak/docker,SvenDowideit/docker,konstruktoid/docker-1,mahak/docker,Ramzec/docker,trebonian/docker,jvanz/docker,moul/docker,konstruktoid/docker-1,vdemeester/docker,trebonian/docker,kolyshkin/moby,justincormack/docker,kolyshkin/moby,djs55/docker,justincormack/docker,tmp6154/docker,estesp/docker,moby/moby,yongtang/docker,jameszhan/docker,dims/docker,tmp6154/docker,pradipd/moby,yongtang/docker,docker/docker,thaJeztah/docker,SvenDowideit/docker,thaJeztah/docker