Here, I wanna try change the text for hr.leave (Time Off) in custom modul (inherit view):

    record id="inherit_hr_leave_view_form" model="ir.ui.view"
        field name="name">hr.leave.view.form.inherit
        field name="model">hr.leave
        field name="inherit_id" ref="hr_holidays.hr_leave_allocation_view_form_manager"/>
        field name="arch" type="xml">
            xpath expr="//field[@name='number_of_days']" position="attributes">
                attribute name="string">Test
            /xpath>
        /field>
    /record>

also I already had model custom where's for inherit hr.leave,

but unfortunately it doesn't work when I upgrade the custom modul, the text won't changed.