add KeyDeserializers

Author: k163377

src/main/kotlin/com/fasterxml/jackson/module/kotlin/KotlinModule.kt

@@ -122,6 +122,7 @@ class KotlinModule @Deprecated(
         context.appendAnnotationIntrospector(KotlinNamesAnnotationIntrospector(this, cache, ignoredClassesForImplyingJsonCreator))
 
         context.addDeserializers(KotlinDeserializers())
+        context.addKeyDeserializers(KotlinKeyDeserializers)
         context.addSerializers(KotlinSerializers())
         context.addKeySerializers(KotlinKeySerializers())