Revert "Jenkinsfile: temporarily pin windows image to 10.0.17763.973"
Revert "Jenkinsfile: temporarily pin windows image to 10.0.17763.973"

This reverts commit fa2417984be775b4076db681d233f565539207db.

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

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