fix: use iOS-compatible regex for autolink parsing

[wenxue11]

Initial checklist

• I read the support docs
• I read the contributing guide
• I agree to follow the code of conduct
• I searched issues and discussions and couldn’t find anything or linked relevant results below
• I made sure the docs are up to date
• I included tests (or that’s not needed)

Description of changes

修复ios低版本，ios16版本，正则表达式报错问题。
之前的正则，在ios低版本会报错误，[Error] SyntaxError: Invalid regular expression: invalid group specifier name。
该正则表达式包含 Safari 使用的 JavaScript 引擎不支持的语法。这通常涉及较新的功能，如后行断言或命名捕获组 。

[JounQin]

Duplicate of #10

[github-actions]

Hi! Thanks for taking the time to contribute!

Because we treat pull requests as our backlog, we close duplicates to focus our work and not have to touch the same chunk of code for the same reason multiple times. This is also why we may mark something as duplicate that isn’t an exact duplicate but is closely related.

Thanks,
— bb