Update schema.prisma

fix pgbouncer to supavisor migration issue

db/postgresql/schema.prisma

@@ -5,6 +5,7 @@ generator client {
 datasource db {
   provider     = "postgresql"
   url          = env("DATABASE_URL")
+  directUrl    = env("DIRECT_URL") // plain connection with no pgBouncer (used for push & migrations)
   relationMode = "prisma"
 }