fix missing ReceiverModel in ModelClassToModelHandlerLinker (#706)

Signed-off-by: Volker Götz <[email protected]>

Author: VolkerGoetz

logback-classic/src/main/java/ch/qos/logback/classic/joran/ModelClassToModelHandlerLinker.java

@@ -57,6 +57,7 @@ public void link(DefaultProcessor defaultProcessor) {
         defaultProcessor.addHandler(InsertFromJNDIModel.class, InsertFromJNDIModelHandler::makeInstance);
 
         defaultProcessor.addHandler(AppenderModel.class, AppenderModelHandler::makeInstance);
+        defaultProcessor.addHandler(ReceiverModel.class, ReceiverModelHandler::makeInstance);
         defaultProcessor.addHandler(AppenderRefModel.class, AppenderRefModelHandler::makeInstance);
         defaultProcessor.addHandler(RootLoggerModel.class, RootLoggerModelHandler::makeInstance);
         defaultProcessor.addHandler(LoggerModel.class, LoggerModelHandler::makeInstance);