ref(node): enable set -u to match go.sh

Author: not-matthias

src/executor/helpers/introspected_nodejs/node.sh

@@ -1,13 +1,13 @@
 #!/usr/bin/env bash
-set -eo pipefail
+set -euo pipefail
 
 # Custom script to replace node and run with V8 flags that make the execution of the
 # benchmarks more predictable.
 # Depending on the version of node, some flags may be deprecated.
 
 # a custom bash function to echo debug messages only if CODSPEED_DEBUG is set to true
 function echo_debug {
-    if [ "$CODSPEED_DEBUG" = "true" ]; then
+    if [ "${CODSPEED_DEBUG:-}" = "true" ]; then
         echo "::debug::" "$@"
     fi
 }