Pontoon: Update French (fr) localization of Mozilla accounts

Co-authored-by: corentinboyertdm <corentinboyertdm@yahoo.com>
Co-authored-by: Google Translate <pontoon-gt@example.com>
Co-authored-by: Translation Memory <pontoon-tm@example.com>

locale/fr/payments.ftl

@@ -493,8 +493,8 @@ pay-update-manage-btn = Gérer
 ## $date (Date) - The date for the next time a charge will occur.
 
 sub-next-bill = Prochaine facturation le { $date }
-sub-next-bill-no-tax-1 = La prochaine facture de { $priceAmount } est due le { $date }
-sub-next-bill-tax-1 = La prochaine facture de { $priceAmount } + { $taxAmount } de taxes est due le { $date }
+sub-next-bill-no-tax-1 = La prochaine facture de { $priceAmount } sera due le { $date }
+sub-next-bill-tax-1 = La prochaine facture de { $priceAmount } + { $taxAmount } de taxes sera due le { $date }
 sub-expires-on = Date d’expiration : { $date }
 
 ## Routes - Subscription - PaymentUpdate