fix(aws.restart): rename scylla-cloud-image to scylla-machine-image
fix(aws.restart): rename scylla-cloud-image to scylla-machine-image

since we are renaming scylla-cloud-image repo to scylla-machine-image
direcoty name is also changing

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