GH-1414 - Check for proper class in jMolecules Onion Architecture integration.

The previous declaration looked for a non-existing type (it's only located in the newly declared package, or would've to be named ApplicationServiceRing).

Signed-off-by: Jens Kutzsche <github@gebea.de>

Author: jekutzsche

spring-modulith-docs/src/main/java/org/springframework/modulith/docs/Groupings.java

@@ -95,7 +95,7 @@ public static class JMoleculesGroupings {
 				.isPresent("org.jmolecules.architecture.layered.ApplicationLayer", JMoleculesGroupings.class.getClassLoader());
 
 		private static final boolean JMOLECULES_ONION_PRESENT = ClassUtils
-				.isPresent("org.jmolecules.architecture.onion.classical.ApplicationRing",
+				.isPresent("org.jmolecules.architecture.onion.simplified.ApplicationRing",
 						JMoleculesGroupings.class.getClassLoader());
 
 		public static Grouping[] getGroupings() {