adapter-static doesn't precompress prerendered .md routes

[sirkostya009]

Describe the bug

pretty much title.

having a src/routes/article.md/+server.ts would correctly yield a build/article.md file without .br or .gz counterparts.

Reproduction

https://stackblitz.com/edit/sveltejs-kit-template-default-buptkrec

Logs

System Info

npmPackages:
    @sveltejs/adapter-static: ^3.0.10 => 3.0.10

Severity

serious, but I can work around it

Additional Information

No response