[FIX] base_geolocalize: allow to override user agent with system parameter

Before this commit, the useragent was harcoded as an Odoo one and if it was
blacklisted by the osmfoundation policy https://operations.osmfoundation.org/policies/nominatim/


all Odoo instances were forbidden to access the service.

This parameter allows to override the user agent with a system parameter.

closes odoo/odoo#134131

Signed-off-by: Yannick Tivisse (yti) <yti@odoo.com>

addons/base_geolocalize/models/base_geocoder.py

@@ -87,7 +87,8 @@ class GeoCoder(models.AbstractModel):
             return None
         url = 'https://nominatim.openstreetmap.org/search'
         try:
-            headers = {'User-Agent': 'Odoo (http://www.odoo.com/contactus)'}
+            headers = {'User-Agent': self.env['ir.config_parameter'].get_param('base_geolocalize.user_agent',
+                                                                               'Odoo (http://www.odoo.com/contactus)')}
             response = requests.get(url, headers=headers, params={'format': 'json', 'q': addr})
             _logger.info('openstreetmap nominatim service called')
             if response.status_code != 200: