Rename target destination for microbenchmarks

Author: idegtiarenko

.buildkite/hooks/pre-command

@@ -96,7 +96,7 @@ fi
 
 if [[ "${USE_PERF_CREDENTIALS:-}" == "true" ]]; then
   PERF_METRICS_HOST=$(vault read -field=es_host /secret/ci/elastic-elasticsearch/esbench-metics)
-  PERF_METRICS_INDEX="dummy-micro-benchmarks"
+  PERF_METRICS_INDEX="metrics-microbenchmarks-default"
   PERF_METRICS_USERNAME=$(vault read -field=es_username /secret/ci/elastic-elasticsearch/esbench-metics)
   PERF_METRICS_PASSWORD=$(vault read -field=es_password /secret/ci/elastic-elasticsearch/esbench-metics)