test: Disable kubernetes image eviction
test: Disable kubernetes image eviction

When disk space is running tight, kubernetes starts to remove docker
images [1]. Disable that, as there is no way to get them back during
tests in our offline VMs, and this leads to really hard-to-debug and
non-obvious failures.

[1] https://kubernetes.io/docs/tasks/administer-cluster/out-of-resource

garrett/cockpit,cockpit-project/cockpit,deryni/cockpit,martinpitt/cockpit,andreasn/cockpit,andreasn/cockpit,stefwalter/cockpit,mareklibra/cockpit,martinpitt/cockpit,andreasn/cockpit,martinpitt/cockpit,deryni/cockpit,stefwalter/cockpit,moraleslazaro/cockpit,mareklibra/cockpit,SotolitoLabs/cockpit,mareklibra/cockpit,deryni/cockpit,deryni/cockpit,deryni/cockpit,moraleslazaro/cockpit,SotolitoLabs/cockpit,cockpituous/cockpit,cockpituous/cockpit,cockpit-project/cockpit,SotolitoLabs/cockpit,stefwalter/cockpit,deryni/cockpit,mvollmer/cockpit,moraleslazaro/cockpit,mareklibra/cockpit,moraleslazaro/cockpit,SotolitoLabs/cockpit,mareklibra/cockpit,martinpitt/cockpit,mvollmer/cockpit,stefwalter/cockpit,cockpit-project/cockpit,cockpit-project/cockpit,andreasn/cockpit,cockpit-project/cockpit,moraleslazaro/cockpit,andreasn/cockpit,cockpituous/cockpit,mvollmer/cockpit,mareklibra/cockpit,martinpitt/cockpit,garrett/cockpit,cockpituous/cockpit,SotolitoLabs/cockpit,mareklibra/cockpit,moraleslazaro/cockpit,garrett/cockpit,stefwalter/cockpit,andreasn/cockpit,garrett/cockpit,stefwalter/cockpit,cockpituous/cockpit,mvollmer/cockpit,SotolitoLabs/cockpit,mvollmer/cockpit,moraleslazaro/cockpit,andreasn/cockpit,SotolitoLabs/cockpit,deryni/cockpit,garrett/cockpit,cockpituous/cockpit,stefwalter/cockpit