fix(disrupt_memory_stress): stress-ng install
fix(disrupt_memory_stress): stress-ng install

stress-ng install failed with error:
No apt package 'stress-ng', but there is a snap with that name.
Try snap install stress-ng

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