Use Jakarta EE 9 fetchgraph hint.

Migrate from the old Java EE fetchgraph hint (javax.persistence.fetchgraph) to the new Jakarta EE fetchgraph hint (jakarta.persistence.fetchgraph) hint.

Resolves #2825
Original pull request #2828

Author: gregturn

Diff for: spring-data-jpa/src/main/java/org/springframework/data/jpa/repository/support/EntityGraphFactory.java

@@ -30,11 +30,12 @@
  *
  * @author Jens Schauder
  * @author Petr Strnad
+ * @author Greg Turnquist
  * @since 2.6
  */
 abstract class EntityGraphFactory {
 
-	public static final String HINT = "javax.persistence.fetchgraph";
+	public static final String HINT = "jakarta.persistence.fetchgraph";
 
 	/**
 	 * Create an {@link EntityGraph} from a collection of properties.