server-tools/auth_supplier/security/auth_supplier_security.xml

<?xml version="1.0" encoding="utf-8"?>
<odoo>

    <record model="ir.module.category" id="module_auth_supplier">
        <field name="name">Auth Supplier</field>
        <field name="sequence">100</field>
    </record>

    <record id="group_auth_supplier" model="res.groups">
        <field name="name">Portal Supplier</field>
        <field name="category_id" ref="module_auth_supplier"/>
    </record>

</odoo>