benchmark: fix http bench-parser.js

The internal HTTParser `reinitialize()` function was removed in
ece5073 and replaced with an `initialize()` function. This broke
benchmark/http/bench-parser.js. This change updates the benchmark so
that it runs again.

PR-URL: #27359
Reviewed-By: Refael Ackermann <refack@gmail.com>
Reviewed-By: Benjamin Gruenbaum <benjamingr@gmail.com>

benchmark/http/bench-parser.js

@@ -24,7 +24,7 @@ function main({ len, n }) {
     bench.start();
     for (var i = 0; i < n; i++) {
       parser.execute(header, 0, header.length);
-      parser.reinitialize(REQUEST, i > 0);
+      parser.initialize(REQUEST, header);
     }
     bench.end(n);
   }