0422/report_docx/views/template.xml

<?xml version="1.0" encoding="utf-8"?>
<odoo>
    <template id="assets_backend" name="report assets" inherit_id="web.assets_backend">
        <xpath expr="." position="inside">
            <script type="text/javascript" src="/report_docx/static/src/js/actionmanager.js"></script>
        </xpath>
    </template>
</odoo>