benchmark: swap var for let in benchmarks

In benchmark directory this changes for loops
using var to let when it applies for consistency

PR-URL: https://github.com/nodejs/node/pull/28958
Reviewed-By: Anna Henningsen <anna@addaleax.net>

1 files changed, 1 insertions, 1 deletions

diff --git a/benchmark/v8/get-stats.js b/benchmark/v8/get-stats.js
index aa1f051681..d5ce102774 100644
--- a/benchmark/v8/get-stats.js
+++ b/benchmark/v8/get-stats.js
@@ -13,7 +13,7 @@ const bench = common.createBenchmark(main, {
 
 function main({ method, n }) {
   bench.start();
-  for (var i = 0; i < n; i++)
+  for (let i = 0; i < n; i++)
     v8[method]();
   bench.end(n);
 }