fix: nunjucks/code blocks in HTML comments were incorrectly converted

[D-Sketon]

What does it do?

fix #5433

Screenshots

Pull request tasks

• Add test cases for the changes.
• Passed the CI test.

[github-actions]

How to test

git clone -b fix/comment https://github.com/D-Sketon/hexo.git
cd hexo
npm install
npm test

[coveralls]

Pull Request Test Coverage Report for Build 12931122833

Details

• 50 of 50 (100.0%) changed or added relevant lines in 2 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage increased (+0.002%) to 99.494%

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Totals
Change from base Build 12902994421:	0.002%
Covered Lines:	9638
Relevant Lines:	9687

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💛 - Coveralls

[D-Sketon]

maybe we can solve it in backtick_code_block.ts

[D-Sketon]

The negative lookbehind and negative lookahead /(?<!<!--[^(?:\-\->)]*?)^((?:[^\S\r\n]*>){0,3}[^\S\r\n]*)(`{3,}|~{3,})[^\S\r\n]*((?:.*?[^`\s])?)[^\S\r\n]*\n((?:[\s\S]*?\n)?)(?:(?:[^\S\r\n]*>){0,3}[^\S\r\n]*)\2[^\S\r\n]?(\n+|$)(?![^(?:<!\-\-)]*?-->)/gm caused a performance regression 😓