fix: correct permissions on functions upon restore (#678)

Author: dragarcia

migrations/db/migrations/20220713082019_pg_cron-pg_net-temp-perms-fix.sql

@@ -14,6 +14,7 @@ BEGIN
   IF pg_cron_installed
   THEN
     grant usage on schema cron to postgres with grant option;
+    grant all on all functions in schema cron to postgres with grant option;
 
     alter default privileges in schema cron grant all on tables to postgres with grant option;
     alter default privileges in schema cron grant all on functions to postgres with grant option;