[FIX] estimate-workload: wrong warning message

Previous syntax does not replace correctly the markers in the string.

Using an f-string fix this.

Before:
2024-02-06 10:47:02.303 | WARNING  | odoo_openupgrade_wizard.tools.tools_odoo_module:get_odoo_apps_url:359 - Error when trying to get %s: %s

After:
2024-02-07 10:51:11.964 | WARNING  | odoo_openupgrade_wizard.tools.tools_odoo_module:get_odoo_apps_url:356 - Error when trying to get https://apps.odoo.com/apps/modules/12.0/partner_contact_address/: Exceeded 30 redirects.

odoo_openupgrade_wizard/tools/tools_odoo_module.py

@@ -353,11 +353,7 @@ class OdooModule(object):
         try:
             response = requests.get(url)
         except requests.exceptions.RequestException as err:
-            logger.warning(
-                "Error when trying to get %s: %s",
-                url,
-                err,
-            )
+            logger.warning(f"Error when trying to get {url}: {err}")
             return False
         if response.status_code == 200:
             return url