[FIX] l10n_in: fix empty HSN on invoice report & missing HSN column

Reproduce this bug:
 - Create 2 companies: Indian and Belgian for example
 - Install accounting & l10n_in
 - Create an invoice & print it

The `<td>` dedicated to the HSN is always present so there is a
cosmetic issue for the not indian companies: the table is a *little*
bit too large. This issue is caused by a missing conditional statement
on the `<td>` who is present on the HSN `<th>`.

OPW-2090663

closes odoo/odoo#39930

X-original-commit: 8d421c703796c0d47233ba0bb0318c829b2f0159
Signed-off-by: Jason Van Malder <jasonvanmalder@users.noreply.github.com>

addons/l10n_in/views/report_invoice.xml

@@ -19,7 +19,7 @@
         </xpath>
 
         <xpath expr="//t[@name='account_invoice_line_accountable']/td[1]" position="after">
-            <td>
+            <td t-if="o.company_id.country_id.code == 'IN'">
               <span t-if="line.product_id.l10n_in_hsn_code" t-field="line.product_id.l10n_in_hsn_code"></span>
             </td>
         </xpath>