[FIX] l10n_ch: Fix return tax type

The return tax should only be used through its parent tax,
we don't want it to be accessible directly on bills or invoices.

opw-3347425 (2nd issue)

closes odoo/odoo#126653

X-original-commit: c8fdceab
Signed-off-by: Brice Bartoletti (bib) <bib@odoo.com>
Signed-off-by: Claire Bretton (clbr) <clbr@odoo.com>

addons/l10n_ch/data/account_tax_template_data_2024.xml

@@ -543,7 +543,7 @@
         <field name="amount_type">percent</field>
         <field name="sequence" eval="0"/>
         <field name="chart_template_id" ref="l10nch_chart_template"/>
-        <field name="type_tax_use">purchase</field>
+        <field name="type_tax_use">none</field>
         <field name="active" eval="False"/>
         <field name="invoice_repartition_line_ids" eval="[(5, 0, 0),
             (0,0, {

addons/l10n_ch/data/account_vat2011_data.xml

@@ -639,7 +639,7 @@
         <field name="sequence" eval="0"/>
         <field name="chart_template_id" ref="l10nch_chart_template"/>
         <field name="tax_group_id" ref="tax_group_tva_77"/>
-        <field name="type_tax_use">purchase</field>
+        <field name="type_tax_use">none</field>
         <field name="invoice_repartition_line_ids" eval="[(5, 0, 0),
                 (0,0, {
                     'repartition_type': 'base',