Add back logging that is occurring

modules/mobile/app/models/mobile/v0/adapters/vaos_v2_appointment.rb

@@ -406,6 +406,14 @@ def parse_phone(phone)
             }
           end
 
+          unless phone.nil?
+            # this logging is intended to be temporary. Remove if it's not occurring
+            Rails.logger.warn(
+              'mobile appointments failed to parse VAOS V2 phone number',
+              phone:
+            )
+          end
+
           { area_code: nil, number: nil, extension: nil }
         end