fix(perf report): unhashable slice
fix(perf report): unhashable slice

somewhere it got mixed up, and we were
trying to slice a dictionary rather than
a list, making the code to fail.

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