[FIX] sale_project: hide create invoice button from project form

This commit hides create invoice button for project form view.

task-3018123

Part-of: odoo/odoo#103183

addons/sale_project/views/project_task_views.xml

@@ -32,8 +32,10 @@
             <xpath expr="//header" position="inside">
                 <field name="has_any_so_to_invoice" invisible="1"/>
                 <field name="has_any_so_with_nothing_to_invoice" invisible="1"/>
-                <button name="action_create_invoice" string="Create Invoice" type="object" class="btn-primary" groups="sales_team.group_sale_salesman_all_leads" attrs="{'invisible': [('has_any_so_to_invoice', '=', False)]}" data-hotkey="w"/>
-                <button name="action_create_invoice" string="Create Invoice" type="object" class="btn-secondary" groups="sales_team.group_sale_salesman_all_leads" attrs="{'invisible': ['|', ('has_any_so_with_nothing_to_invoice', '=', False), ('has_any_so_to_invoice', '=', True)]}" data-hotkey="w"/>
+                <!-- remove me in master -->
+                <button name="action_create_invoice" string="Create Invoice" type="object" class="btn-primary" groups="sales_team.group_sale_salesman_all_leads" attrs="{'invisible': [('has_any_so_to_invoice', '=', False)]}" data-hotkey="w" invisible="1"/>
+                <!-- remove me in master -->
+                <button name="action_create_invoice" string="Create Invoice" type="object" class="btn-secondary" groups="sales_team.group_sale_salesman_all_leads" attrs="{'invisible': ['|', ('has_any_so_with_nothing_to_invoice', '=', False), ('has_any_so_to_invoice', '=', True)]}" data-hotkey="w" invisible="1"/>
             </xpath>
             <xpath expr="//field[@name='partner_id']" position="attributes">
                 <attribute name="options">{'always_reload': True}</attribute>