benchmark: swap var for let in url benchmarks

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

PR-URL: https://github.com/nodejs/node/pull/28867
Reviewed-By: Jan Krems <jan.krems@gmail.com>
Reviewed-By: Khaidi Chu <i@2333.moe>
Reviewed-By: Rich Trott <rtrott@gmail.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/benchmark/url/url-searchparams-read.js b/benchmark/url/url-searchparams-read.js
index 2eb0a4f213..cdaaa7ad11 100644
--- a/benchmark/url/url-searchparams-read.js
+++ b/benchmark/url/url-searchparams-read.js
@@ -16,7 +16,7 @@ function main({ accessMethod, param, n }) {
     throw new Error(`Unknown method ${accessMethod}`);
 
   bench.start();
-  for (var i = 0; i < n; i += 1)
+  for (let i = 0; i < n; i += 1)
     params[accessMethod](param);
   bench.end(n);
 }