feat: enable docs/next

Author: mdjermanovic

src/static/redirects.njk

@@ -112,8 +112,11 @@ eleventyExcludeFromCollections: true
 /docs/v9.x/*                        https://eslint.org/docs/latest/:splat 302!
 
 # Docs for the current prerelease
-# As there is currently no active prerelease, redirect to latest docs
-/docs/next/*                        https://eslint.org/docs/latest/:splat 302!
+{% if site.locals.docs_next %}
+/docs/next/*                        https://{{ site.locals.docs_next }}/:splat 200!
+{% else %}
+/docs/next/*                        https://eslint.org/docs/next/:splat 302!
+{% endif %}
 
 {% if site.locals.blog == false %}
 # Redirect blog back to English site