Fix: Token capitalization (coscine/issues#2130)

src/Action/Implementations/ContactChange/NotificationAction.cs

@@ -15,7 +15,7 @@ namespace Coscine.Action.Implementations.ContactChange
             if (!contactChangeEventArgs.SilentMode)
             {
                 var baseURL = $"{contactChangeEventArgs.Configuration.GetStringAndWait("coscine/local/api/additional/url")}";
-                var completeURL = $"{baseURL}/?emailToken={contactChangeEventArgs.ContactInformation.ConfirmationToken}";
+                var completeURL = $"{baseURL}/?emailtoken={contactChangeEventArgs.ContactInformation.ConfirmationToken}";
                 var args = new JObject()
                 {
                     ["Args"] = new JObject()