Update fly-postgres.mdx (supabase#23381)

Author: kiwicopple

apps/docs/content/guides/platform/fly-postgres.mdx

@@ -8,7 +8,7 @@ Fly Postgres databases are deployed on the Fly.io edge network. Fly Postgres is
 
 <Admonition type="note">
 
-Fly Postgres is currently in private alpha. To request early access, [submit the request form](https://forms.supabase.com/fly-postgres).
+Fly Postgres is currently in private alpha. To request early access, [submit the request form](https://forms.supabase.com/fly-postgres). Do not use it for Production workloads.
 
 </Admonition>