Fix local end user session grants and schema resolution

scenarios/03-pii-row-column-cell/sql/04_test_queries.sql

@@ -1,6 +1,8 @@
 SET PAGESIZE 100
 SET LINESIZE 200
 
+ALTER SESSION SET CURRENT_SCHEMA = ADMIN;
+
 SELECT employee_id, first_name, last_name, email, manager, ssn, salary, phone
 FROM dds_employees
 ORDER BY employee_id;
@@ -10,4 +12,3 @@ SET phone = '555-9999'
 WHERE email = ORA_END_USER_CONTEXT.username;
 
 COMMIT;
-