Use DB_DEVELOPER_ROLE for dbt tests

Author: aosingh

.github/scripts/create_new_user.sh

@@ -21,7 +21,7 @@ sqlplus -s / as sysdba << EOF
    -- Exit on any errors
    WHENEVER SQLERROR EXIT SQL.SQLCODE
    ${ALTER_SESSION_CMD}
-   CREATE USER ${DB_USER} IDENTIFIED BY "${DB_PASSWORD}" QUOTA UNLIMITED ON USERS;
-   GRANT ALL PRIVILEGES TO ${DB_USER};
+   CREATE USER ${DB_USER} IDENTIFIED BY "${DB_PASSWORD}";
+   GRANT DB_DEVELOPER_ROLE TO ${DB_USER};
    exit;
 EOF