[FIX] pos_stripe: fix stripe rounding issue

Current behavior:
When you setup a stripe payment terminal, there was a rounding issue.
If you sold a product for 1.10€ with a tax of 7%, the total amount
was 1.18€, but the amount sent to the stripe terminal was 1.17€.

Steps to reproduce:
- Setup the stripe payment terminal
- Create a product with a price of 1.10€ and a tax of 7%
- Create a POS order with this product, the total is 1.18€
- Pay the order with the stripe payment terminal, the amount sent to
  the terminal is 1.17€

opw-3298277

closes odoo/odoo#124372

X-original-commit: 356a6b089c020a9a83c8c7b65b588a50491c13a8
Signed-off-by: Joseph Caburnay (jcb) <jcb@odoo.com>
Signed-off-by: Engels Robin (roen) <roen@odoo.com>

addons/pos_stripe/models/pos_payment_method.py

@@ -65,7 +65,7 @@ class PosPaymentMethod(models.Model):
 
     def _stripe_calculate_amount(self, amount):
         currency = self.journal_id.currency_id or self.company_id.currency_id
-        return int(amount/currency.rounding)
+        return round(amount/currency.rounding)
 
     def stripe_payment_intent(self, amount):
         if not self.env.user.has_group('point_of_sale.group_pos_user'):