Update apps/docs/pages/guides/cli/local-development.mdx

Co-authored-by: Greg Richardson <greg@supabase.io>

apps/docs/pages/guides/cli/local-development.mdx

@@ -351,7 +351,7 @@ Diffing schemas: public
 Finished supabase db diff on branch main.
 
 create table "public"."cities" (
-    "id" bigint generated by default as identity not null,
+    "id" bigint primary key generated always as identity,
     "name" text,
     "population" bigint
 );