fix new linter warnings in restore_test.go
fix new linter warnings in restore_test.go

Signed-off-by: Nahshon Unna-Tsameret <d2a35840b61a4cf34917e887f4c10555349f04a7@redhat.com>

kubevirt/kubevirt,kubevirt/kubevirt,kubevirt/kubevirt,kubevirt/kubevirt