Generated doc JSON is invalid utf-8

How are you using the lua-language-server?

Visual Studio Code Extension (sumneko.lua)

Which OS are you using?

Windows WSL

What is the issue affecting?

Other

Expected Behaviour

JSON document output from --doc is standard utf-8 encoding.

Actual Behaviour

When trying to parse the JSON with our site builder, Ruby fails with:

jekyll 3.9.3 | Error:  (/home/rhys/spring/doc/site/_data/doc.json): invalid leading UTF-8 octet at line 1 column 1
/usr/share/rvm/rubies/ruby-3.2.3/lib/ruby/3.2.0/psych/parser.rb:62:in `_native_parse': (/home/rhys/spring/doc/site/_data/doc.json): invalid leading UTF-8 octet at line 1 column 1 (Psych::SyntaxError)
        from /usr/share/rvm/rubies/ruby-3.2.3/lib/ruby/3.2.0/psych/parser.rb:62:in `parse'
        from /usr/share/rvm/gems/ruby-3.2.3/gems/safe_yaml-1.0.5/lib/safe_yaml/load.rb:143:in `load'

Opening the file in VSCode suggests that it is indeed utf-8, but clicking UTF-8 in the footer and then "Save with encoding > UTF-8" reserializes the file and the parser error is cleared.

Sorry I'm not more specific with the error, I don't know a great deal about file formats.

Reproduction steps

1. Export docs
2. Somehow check if they are properly encoded?

Additional Notes

No response

Log File

No response

从 --doc 调用的文档导出入口开始，然后重新执行导出并检查生成的 JSON 的前几个字节。当导出的文档能在所报告的 Ruby/Jekyll 站点构建器中作为标准 UTF-8 成功解析时，该 issue 即完成。