feat: support languageOptions.parser and test with a Rust-based parser

[lumirlumir]

Prerequisites checklist

• I have read the contributing guidelines.

AI acknowledgment

• I did not use AI to generate this PR.
• (If the above is not checked) I have reviewed the AI-generated content before submitting.

What is the purpose of this pull request?

Caution

This PR is still experimental and a work in progress as we work to align it with the RFC and develop a prototype.

What changes did you make? (Give an overview)

This PR is still experimental and a work in progress.

Related Issues

See the development of the Rust-based Markdown parser here:

• feat(*): add Rust based @eslint-markdown/parser for performance lumirlumir/npm-eslint-markdown#638

Related Issue:

• Change Request: Support languageOptions.parser to improve parser performance by integrating a Rust parser #703

Is there anything you'd like reviewers to focus on?

References

• _utils in create-config: https://github.com/eslint/create-config/tree/main/tests/_utils
• markdown's parse: https://github.com/eslint/markdown/blob/main/src/language/markdown-language.js#L223
• json's parse: https://github.com/eslint/json/blob/main/src/languages/json-language.js#L112
• css's parse: https://github.com/eslint/css/blob/main/src/languages/css-language.js#L220
• https://eslint.org/docs/latest/use/configure/parser
• https://eslint.org/docs/latest/extend/custom-parsers

TODO

• parseForESLint?
• NonMdastParser?