fix(nemesis): fix disrupt_nodetool_refresh failing when chaosmonkey invokes it
fix(nemesis): fix disrupt_nodetool_refresh failing when chaosmonkey invokes it

scylladb/scylla-cluster-tests,scylladb/scylla-longevity-tests,scylladb/scylla-cluster-tests,scylladb/scylla-cluster-tests,scylladb/scylla-cluster-tests,scylladb/scylla-cluster-tests,scylladb/scylla-longevity-tests,scylladb/scylla-longevity-tests