Add dbmate message about database version to schema

db/schema.sql

@@ -1,3 +1,8 @@
+\restrict VcBcXJr0fe2fRf2im7J0PCentZxDeYMChdNcReN5LtHeQrg2nXyh5MelIBAiGsO
+
+-- Dumped from database version 17.6
+-- Dumped by pg_dump version 17.6
+
 SET statement_timeout = 0;
 SET lock_timeout = 0;
 SET idle_in_transaction_session_timeout = 0;
@@ -124,6 +129,8 @@ ALTER TABLE ONLY yore.day_file
 -- PostgreSQL database dump complete
 --
 
+\unrestrict VcBcXJr0fe2fRf2im7J0PCentZxDeYMChdNcReN5LtHeQrg2nXyh5MelIBAiGsO
+
 
 --
 -- Dbmate schema migrations