partner-contact/partner_deduplicate_acl/wizards/partner_merge_view.xml

<?xml version="1.0" encoding="utf-8" ?>
<!-- Copyright 2016 Tecnativa - Jairo Llopis
     Copyright 2016 Tecnativa - Vicent Cubells
     Copyright 2018 Tecnativa - Pedro M. Baeza
     Copyright 2019 Tecnativa - Victor M.M. Torres
     License AGPL-3.0 or later (https://www.gnu.org/licenses/agpl.html). -->
<odoo>
    <record id="base_partner_merge_automatic_wizard_form" model="ir.ui.view">
        <field name="name">Restrict automatic merge access</field>
        <field name="model">base.partner.merge.automatic.wizard</field>
        <field name="inherit_id" ref="base.base_partner_merge_automatic_wizard_form" />
        <field name="arch" type="xml">
            <xpath
                expr="//button[@name='action_start_automatic_process']"
                position="attributes"
            >
                <attribute
                    name="groups"
                >partner_deduplicate_acl.group_automatically</attribute>
            </xpath>
            <xpath
                expr="//button[@name='action_update_all_process']"
                position="attributes"
            >
                <attribute
                    name="groups"
                >partner_deduplicate_acl.group_automatically</attribute>
            </xpath>
        </field>
    </record>
    <record id="base.action_partner_merge" model="ir.actions.act_window">
        <field
            name="groups_id"
            eval="[(4, ref('partner_deduplicate_acl.group_manually'))]"
        />
    </record>
</odoo>