fix: fix supabase security warning for custom_access_token_hook function

Author: joepaolicelli

README.md

@@ -69,6 +69,7 @@ CREATE POLICY "user can read own roles" ON "user_roles" AS PERMISSIVE FOR SELECT
 create or replace function public.custom_access_token_hook(event jsonb)
 returns jsonb
 language plpgsql
+set search_path = ''
 stable
 as $$
   declare