benchmark: update iterations in benchmark/crypto/get-ciphers.js

[lucshi]

Increase the 500 iteration to 50000 to reflect the real ciphers perf. The single iteration n=1 can not make the score reasonable.

Refs: #50571

before:
crypto/get-ciphers.js v="crypto" n=1: 1,852.3492419260726
crypto/get-ciphers.js v="tls" n=1: 1,405.8034377517265
crypto/get-ciphers.js v="crypto" n=5000: 6,147,294.084090065
crypto/get-ciphers.js v="tls" n=5000: 4,488,971.047034541

after
crypto/get-ciphers.js v="crypto" n=1: 1,879.232972270038
crypto/get-ciphers.js v="tls" n=1: 1,430.8526164570944
crypto/get-ciphers.js v="crypto" n=500000: 9,035,846.449813219
crypto/get-ciphers.js v="tls" n=500000: 19,212,295.13113179

[H4ad]

You already updated the get-ciphers at: https://github.com/nodejs/node/pull/50861/files#diff-18aec8a200905e49e047c06939918db3ef51e9d59bd868b72139b5989a47247eR6

[lucshi]

You already updated the get-ciphers at: https://github.com/nodejs/node/pull/50861/files#diff-18aec8a200905e49e047c06939918db3ef51e9d59bd868b72139b5989a47247eR6

I have updated that PR removing ciphers, and also updated the commit msg of this PR. Could you please go ahead to approve this PR. Thanks!

[H4ad]

Thanks for the PR

[nodejs-github-bot]

Landed in 1b16bf6