Update core native hints

This commit adds a:

* JDK proxy hint for JobExplorer
* Reflection hint for fields of java.sql.Types

Author: fmbenhassine

spring-batch-core/src/main/java/org/springframework/batch/core/aot/CoreRuntimeHints.java

@@ -15,8 +15,11 @@
  */
 package org.springframework.batch.core.aot;
 
+import java.sql.Types;
+
 import org.springframework.aop.SpringProxy;
 import org.springframework.aop.framework.Advised;
+import org.springframework.aot.hint.MemberCategory;
 import org.springframework.aot.hint.RuntimeHints;
 import org.springframework.aot.hint.RuntimeHintsRegistrar;
 import org.springframework.aot.hint.TypeReference;
@@ -48,9 +51,11 @@ public void registerHints(RuntimeHints hints, ClassLoader classLoader) {
 
 		hints.proxies()
 				.registerJdkProxy(builder -> builder
-						.proxiedInterfaces(TypeReference.of("org.springframework.batch.core.repository.JobRepository"))
+						.proxiedInterfaces(TypeReference.of("org.springframework.batch.core.repository.JobRepository"),
+								TypeReference.of("org.springframework.batch.core.explore.JobExplorer"))
 						.proxiedInterfaces(SpringProxy.class, Advised.class, DecoratingProxy.class));
 
+		hints.reflection().registerType(Types.class, MemberCategory.DECLARED_FIELDS);
 	}
 
 }