[IMP] l10n_in_reports_gstr: add suggestion for 30 days duration

In this commit:
We add suggestion for user to enable the GST Portal API
access with 30 days duration of token expiration. Because
whenever GSTR2B cron triggers i.e. Once in a day the token
seems to be expired already

opw-4634890

closes odoo/documentation#12568

X-original-commit: 5d2ef5a1d4
Signed-off-by: Harsh Modi (hamo) <hamo@odoo.com>

content/applications/finance/fiscal_localizations/india.rst

@@ -361,6 +361,10 @@ To file GST Returns in Odoo, you must first enable API access on the GST portal.
    .. image:: india/gst-portal-api-yes.png
       :alt: Click Yes
 
+.. note::
+   It is recommended to set the :guilabel:`Duration` to :guilabel:`30 days` to avoid the need for
+   frequent token reauthentication.
+
 #. Doing so enables a :guilabel:`Duration` drop-down menu. Select the :guilabel:`Duration` of your
    preference, and click :guilabel:`Confirm`.