fix(nextjs): separate infrastructure failure note from checklist in auth error message

Author: jacekradko

packages/nextjs/src/server/errors.ts

@@ -27,7 +27,8 @@ export const authAuthHeaderMissing = (helperName = 'auth', prefixSteps?: string[
 - ${prefixSteps ? [...prefixSteps, ''].join('\n- ') : ' '}clerkMiddleware() is used in your Next.js ${fileReference} file.
 - Your ${fileReference} matcher is configured to match this route or page.
 - If you are using the src directory, make sure the ${fileReference} file is inside of it.
-- If your ${fileReference} file and matcher are configured correctly, this error can also occur if the ${fileReference} failed to run on this request (e.g. due to an edge runtime error or platform outage).
+
+If you verified your configuration and are still seeing this error, there may be a runtime issue or a problem communicating with Clerk.
 
 For more details, see https://clerk.com/err/auth-middleware
 `;