Upgrade to Hibernate 6.

Introduce bytebuddy exclusions to avoid clashes with Mockito-provided byte buddy versions. Extend version range in Jackson Hibernate module registrar.

Closes #2158

spring-data-rest-webmvc/pom.xml

@@ -78,10 +78,17 @@
 		</dependency>
 
 		<dependency>
-			<groupId>org.hibernate</groupId>
+			<groupId>org.hibernate.orm</groupId>
 			<artifactId>hibernate-core</artifactId>
 			<version>${hibernate.version}</version>
 			<optional>true</optional>
+			<!-- Avoid conflicts with ByteBuddy brought by Mockito -->
+			<exclusions>
+				<exclusion>
+					<groupId>net.bytebuddy</groupId>
+					<artifactId>byte-buddy</artifactId>
+				</exclusion>
+			</exclusions>
 		</dependency>
 
 		<!-- Querydsl -->