testing: skip TestBuildWCOWSandboxSize for now
testing: skip TestBuildWCOWSandboxSize for now

This test is failing frequently once nodes have less disk space
available. Skipping the test for now, but we can continue looking
for a good solution.

Tracked through https://github.com/moby/moby/issues/42743

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

mahak/docker,flavio/docker,moul/docker,mahak/docker,jimjag/docker,jthelin/docker,docker/docker,vdemeester/docker,trebonian/docker,trebonian/docker,gnailuy/docker,konstruktoid/docker-upstream,nawawi/docker,jameszhan/docker,gnailuy/docker,mahak/docker,jimjag/docker,jimjag/docker,cpuguy83/docker,Mokolea/docker,bearstech/moby,flavio/docker,konstruktoid/docker-upstream,docker/docker,bearstech/moby,jthelin/docker,nalind/docker,trebonian/docker,jameszhan/docker,cpuguy83/docker,yosifkit/docker,vdemeester/docker,gnailuy/docker,moby/moby,moby/moby,yosifkit/docker,bearstech/moby,mahak/docker,thaJeztah/docker,Mokolea/docker,Mokolea/docker,trebonian/docker,Mokolea/docker,docker/docker,nalind/docker,cpuguy83/docker,Ramzec/docker,moul/docker,nawawi/docker,flavio/docker,Ramzec/docker,konstruktoid/docker-upstream,konstruktoid/docker-upstream,bearstech/moby,moul/docker,nalind/docker,gnailuy/docker,Ramzec/docker,nalind/docker,yosifkit/docker,nawawi/docker,thaJeztah/docker,vdemeester/docker,Ramzec/docker,nawawi/docker,moby/moby,thaJeztah/docker,thaJeztah/docker,flavio/docker,jimjag/docker,moul/docker,jameszhan/docker,moby/moby,cpuguy83/docker,yosifkit/docker