Update dependency org.springframework.batch:spring-batch-core to v6

Author: renovate[bot]

pom.xml

@@ -196,7 +196,7 @@
         <dependency>
             <groupId>org.springframework.batch</groupId>
             <artifactId>spring-batch-core</artifactId>
-            <version>5.2.3</version>
+            <version>6.0.0</version>
         </dependency>
 
         <!-- Testing-->