Dockerfile: mount install scripts instead of copying
Dockerfile: mount install scripts instead of copying

These scripts are only used to build the binaries, and
the scripts themselves don't have to be persisted in an
image, so we can mount them instead of copying to the stage

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

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