fix(cli): Fix bad docusaurus CLI behavior on for --version, -V, --help, -h

[ashiq-firoz]

Motivation

Fix #10367

• docusaurus -h/--help should exit with status code 0 instead of 1
• docusaurus -V/--version should print the version and not the help, and should exit with status code 0 instead of 1

This lets Commander handle version/help properly, and remove useless workaround code

Test Plan

local test by @slorber

yarn workspace website docusaurus
yarn workspace website docusaurus --version
yarn workspace website docusaurus -V

yarn workspace website docusaurus -h
yarn workspace website docusaurus --help

yarn workspace website docusaurus start
yarn workspace website docusaurus build

yarn workspace website docusaurus docs:version myVersion

yarn workspace website docusaurus badCommand
yarn workspace website docusaurus --badOption

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⚡️ Lighthouse report for the deploy preview of this PR

URL	Performance	Accessibility	Best Practices	SEO	Report
/	🟠 73	🟢 98	🟢 96	🟢 100	Report
/docs/installation	🟠 54	🟢 97	🟢 100	🟢 100	Report
/docs/category/getting-started	🟠 74	🟢 100	🟢 100	🟠 86	Report
/blog	🟠 60	🟢 96	🟢 100	🟠 86	Report
/blog/preparing-your-site-for-docusaurus-v3	🟠 54	🟢 92	🟢 100	🟢 100	Report
/blog/tags/release	🟠 69	🟢 96	🟢 100	🟠 86	Report
/blog/tags	🟠 75	🟢 100	🟢 100	🟠 86	Report

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[slorber]

Thanks for the initial PR but the code didn't rally work

I took the opportunity to fix this properly once for all