fix row level security docs url in expo tutorial (#30367)

fix row level security docs url

apps/docs/content/guides/getting-started/tutorials/with-expo-react-native.mdx

@@ -40,7 +40,7 @@ npx expo install @supabase/supabase-js @react-native-async-storage/async-storage
 Now let's create a helper file to initialize the Supabase client.
 We need the API URL and the `anon` key that you copied [earlier](#get-the-api-keys).
 These variables are safe to expose in your Expo app since Supabase has
-[Row Level Security](/docs/guides/auth#row-level-security) enabled on your Database.
+[Row Level Security](/docs/guides/database/postgres/row-level-security) enabled on your Database.
 
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