Initialize Kotlin detector at build time

Author: sdeleuze

spring-graalvm-native-configuration/src/main/resources/initialization.json

@@ -82,6 +82,7 @@
   {"class": "org.springframework.core.io.support.SpringFactoriesLoader"},
   {"class": "org.springframework.http.codec.CodecConfigurerFactory"},
   {"class": "org.springframework.context.annotation.CommonAnnotationBeanPostProcessor"},
+  {"class": "org.springframework.core.KotlinDetector"},
 
   // Caches
   {"class": "org.springframework.util.ReflectionUtils"},