[FIX] l10n_ar: Exportation invoices demo data

The exportation invoices demo data was created in the "Sales Journal" journal instead of the "Exportation Sales Journal". To fix this we have added the xml id of the journal explictly to fix this.

closes odoo/odoo#42993

Signed-off-by: Josse Colpaert <jco@openerp.com>

addons/l10n_ar/demo/account_customer_invoice_demo.xml

@@ -80,6 +80,7 @@
     <!-- Invoice to cerro castor, fiscal position changes taxes to exempt -->
     <record id="demo_invoice_6" model="account.move">
         <field name="partner_id" ref="res_partner_cerrocastor"/>
+        <field name="journal_id" ref="l10n_ar.sale_expo_journal_ri"/>
         <field name="invoice_user_id" ref="base.user_demo"/>
         <field name="invoice_payment_term_id" ref="account.account_payment_term_end_following_month"/>
         <field name="type">out_invoice</field>
@@ -99,6 +100,7 @@
     <!-- Export invoice to expresso, fiscal position changes tax to exempt (type 4 because it have services) -->
     <record id="demo_invoice_7" model="account.move">
         <field name="partner_id" ref="res_partner_expresso"/>
+        <field name="journal_id" ref="l10n_ar.sale_expo_journal_ri"/>
         <field name="invoice_user_id" ref="base.user_demo"/>
         <field name="invoice_payment_term_id" ref="account.account_payment_term_end_following_month"/>
         <field name="type">out_invoice</field>
@@ -197,6 +199,7 @@
     <!-- Export invoice to expresso, fiscal position changes tax to exempt (type 1 because only products) -->
     <record id="demo_invoice_14" model="account.move">
         <field name="partner_id" ref="res_partner_expresso"/>
+        <field name="journal_id" ref="l10n_ar.sale_expo_journal_ri"/>
         <field name="invoice_user_id" ref="base.user_demo"/>
         <field name="invoice_payment_term_id" ref="account.account_payment_term_end_following_month"/>
         <field name="type">out_invoice</field>
@@ -211,6 +214,7 @@
     <!-- Export invoice to expresso, fiscal position changes tax to exempt (type 2 because only service) -->
     <record id="demo_invoice_15" model="account.move">
         <field name="partner_id" ref="res_partner_expresso"/>
+        <field name="journal_id" ref="l10n_ar.sale_expo_journal_ri"/>
         <field name="invoice_user_id" ref="base.user_demo"/>
         <field name="invoice_payment_term_id" ref="account.account_payment_term_end_following_month"/>
         <field name="type">out_invoice</field>
@@ -225,6 +229,7 @@
     <!-- Export invoice to expresso, fiscal position changes tax to exempt (type 1 because it have products only, used to test refund of expo) -->
     <record id="demo_invoice_16" model="account.move">
         <field name="partner_id" ref="res_partner_expresso"/>
+        <field name="journal_id" ref="l10n_ar.sale_expo_journal_ri"/>
         <field name="invoice_user_id" ref="base.user_demo"/>
         <field name="invoice_payment_term_id" ref="account.account_payment_term_end_following_month"/>
         <field name="type">out_invoice</field>