[FIX] partner_phone_country_validation: correct overall fragile process

partner_phone_country_validation/tools/get_country_from_phone_number.py

@@ -7,7 +7,7 @@ try:
 
     def get_country_from_phone_number(number):
         try:
-            number = phonenumbers.parse(number)            
+            number = phonenumbers.parse(number)
             return phonenumbers.region_code_for_number(number)
         except phonenumbers.phonenumberutil.NumberParseException:
             return False
@@ -22,4 +22,4 @@ except ImportError:
                 "verified. Please install the `phonenumbers` Python module."
             )
             _phonenumbers_lib_warning = True
-        return number
+        return number