fix: logging results preview

Author: nbbeeken

.evergreen/perf-send.sh

@@ -1,9 +1,11 @@
 #!/usr/bin/env bash
 
-set -euox pipefail
+set -euo pipefail
 
 source $DRIVERS_TOOLS/.evergreen/init-node-and-npm-env.sh
 
 TARGET_FILE=$(realpath "${TARGET_FILE:-./test/benchmarks/driver_bench/results.json}")
 
+set -o xtrace
+
 node ./.evergreen/perf_send.mjs $TARGET_FILE