test: fix flaky test-benchmark-misc

Allow zero results for short benchmark test.

PR-URL: #17686
Reviewed-By: Colin Ihrig <[email protected]>
Reviewed-By: Anatoli Papirovski <[email protected]>
Reviewed-By: James M Snell <[email protected]>

Author: Trott

test/parallel/test-benchmark-misc.js

@@ -11,4 +11,4 @@ runBenchmark('misc', [
   'n=1',
   'type=extend',
   'val=magyarország.icom.museum'
-]);
+], { NODEJS_BENCHMARK_ZERO_ALLOWED: 1 });