ref(nextjs): Point out next dev --turbo minimum required NextJS version

Author: Lms24

includes/nextjs-turbopack-warning-expandable.mdx

@@ -4,7 +4,7 @@ The Sentry SDK doesn't yet fully support Turbopack production builds (`next buil
 
 If you upgraded the Sentry SDK to the latest version and installed Next.js on version `15.3.0` or later, the SDK will capture all data as expected, however, it is currently not possible to apply sourcemaps to Turbopack production builds.
 
-Turbopack in dev-mode (`next dev --turbopack`) is fully supported.
+Turbopack in dev-mode (`next dev --turbopack`) is fully supported for Next.js 15.3.0 and later. To verify your Sentry setup, temporarily remove the `--turbo` if you're on older Next.js versions.
 
 Check the latest information on [Sentry's support for Turbopack on GitHub](https://github.com/getsentry/sentry-javascript/issues/8105).