Revert to legacy behavior for Hibernate ORM bytecode enhancement of unsupported classes

For backwards compatibility reasons.

Author: yrodiere

extensions/hibernate-orm/deployment/src/main/java/io/quarkus/hibernate/orm/deployment/integration/QuarkusEnhancementContext.java

@@ -33,9 +33,11 @@ public UnsupportedEnhancementStrategy getUnsupportedEnhancementStrategy() {
         // Lack of enhancement could lead to many problems,
         // from bad performance, to Quarkus-specific optimizations causing errors/data loss,
         // to incorrect generated bytecode (references to non-existing methods).
-        // If something prevents enhancement, it's just safer to have Hibernate ORM's enhancer fail
+        // For backwards compatibility reason, in this branch we adopt the legacy behavior of Hibernate ORM,
+        // which is to try to enhance all classes, ignoring any known issue.
+        // However, later versions of Quarkus (3.17+ at least) just have Hibernate ORM's enhancer fail.
         // with a clear error message pointing to the application class that needs to be fixed.
-        return UnsupportedEnhancementStrategy.FAIL;
+        return UnsupportedEnhancementStrategy.LEGACY;
     }
 
 }