WIP: feat: Improve batch performance

robert-server-batch/src/main/java/fr/gouv/stopc/robert/server/batch/reader/CustomMongoItemReader.java

+package fr.gouv.stopc.robert.server.batch.reader;
+
+import org.springframework.batch.item.data.MongoItemReader;
+
+public class CustomMongoItemReader<T> extends MongoItemReader<T> {
+
+	public void setPage(int page) {
+		super.page = page;
+	}
+}