[FIX] sale: demo installation order

The product demo file marks a lot of product as 'invoice on delivery'
(the default is invoice on order), but the invoice status and amount to
invoice on order lines is _not_ recomputed when the product's invoice
policy changes (this is a conscious choice, as it would trigger
recomputation on past orders).

This means that the demo for products must be loaded _before_ the orders
demo, otherwise the computation for what is to invoice or not will seem
to make no sense on a demo db (even though the computation is in fact
correct): a lot of orders where marked as 'to invoice' while the
products where not delivered; invoice those and the system will again
mark them as 'to invoice' and will immediately want to generate a
refund...

closes odoo/odoo#45778

X-original-commit: e10f473fa2aba411755b76a0c1af7ff107cde5de
Signed-off-by: Damien Bouvy (dbo) <dbo@odoo.com>

addons/sale/__manifest__.py

@@ -39,8 +39,8 @@ This module contains all the common features of Sales Management and eCommerce.
         'wizard/sale_payment_link_views.xml',
     ],
     'demo': [
-        'data/sale_demo.xml',
         'data/product_product_demo.xml',
+        'data/sale_demo.xml',
     ],
     'installable': True,
     'auto_install': False