test: Mark TestRealms.testDialogTransition as nondestructive
test: Mark TestRealms.testDialogTransition as nondestructive

The other one, testInstall(), removes the realmd package, which we can't
revert.

Closes #13573

cockpituous/cockpit,cockpituous/cockpit,cockpituous/cockpit,cockpit-project/cockpit,mvollmer/cockpit,mvollmer/cockpit,moraleslazaro/cockpit,moraleslazaro/cockpit,martinpitt/cockpit,cockpit-project/cockpit,mvollmer/cockpit,deryni/cockpit,moraleslazaro/cockpit,mvollmer/cockpit,martinpitt/cockpit,cockpit-project/cockpit,mvollmer/cockpit,moraleslazaro/cockpit,moraleslazaro/cockpit,garrett/cockpit,cockpit-project/cockpit,deryni/cockpit,deryni/cockpit,deryni/cockpit,deryni/cockpit,moraleslazaro/cockpit,martinpitt/cockpit,garrett/cockpit,martinpitt/cockpit,garrett/cockpit,garrett/cockpit,martinpitt/cockpit,cockpituous/cockpit,cockpit-project/cockpit,cockpituous/cockpit,cockpituous/cockpit,deryni/cockpit,deryni/cockpit,moraleslazaro/cockpit,garrett/cockpit