fix(perf_test pipeline): fix old builder leftover
fix(perf_test pipeline): fix old builder leftover

the function getJenkinsLabels has changed, and this
pipeline has a leftover that probably is what is
breaking test to run.
Changing following similar changes in other pipelines.

scylladb/scylla-cluster-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-longevity-tests