benchmark: use much smaller values for n in some http tests by psmarshall · Pull Request #14002 · nodejs/node

Checklist
  • make -j4 test (UNIX), or vcbuild test (Windows) passes
  • commit message follows commit guidelines
Affected core subsystem(s)

benchmark

The n values here are really, really high right now, and we can still get high confidence (3 stars) with this much lower n value. This makes the benchmarks run a lot faster without sacrificing accuracy.