dashboard_security.xml

<?xml version="1.0" encoding="UTF-8" ?>
<odoo noupdate="1">
    <record model="ir.module.category" id="dashboard_category">
        <field name="name">Dashboard</field>
        <field name="sequence">10</field>
    </record>

    <record id="group_dashboard_user" model="res.groups">
        <field name="name">Dashboard user</field>
        <field name="category_id" ref="festa_dashboard.dashboard_category" />
    </record>
</odoo>