Not able to drain a node when running LokiStack with size 1x.demo in RHOCP 4

Issue

• When running the LokiStack wih size 1x.demo the node where running Loki pods is not able to be drained with a pod's disruption budget error:

  E0208 09:40:06.497414       1 drain_controller.go:142] error when evicting pods/"logging-loki-distributor-84f4ccd8d5-5xz6m" -n "openshift-logging" (will retry after 5s): Cannot evict pod as it would violate the pod's disruption budget.
  E0208 09:40:07.709796       1 drain_controller.go:142] error when evicting pods/"logging-loki-index-gateway-0" -n "openshift-logging" (will retry after 5s): Cannot evict pod as it would violate the pod's disruption budget.
  E0208 09:40:09.291697       1 drain_controller.go:142] error when evicting pods/"logging-loki-ingester-0" -n "openshift-logging" (will retry after 5s): Cannot evict pod as it would violate the pod's disruption budget.