JBPM-10150: Updated the log statement (#2253)

Co-authored-by: Sudhish Nair <[email protected]>

jbpm-persistence/jbpm-persistence-jpa/src/main/java/org/jbpm/persistence/JpaProcessPersistenceContext.java

@@ -128,7 +128,7 @@ public PersistentCorrelationKey persist(PersistentCorrelationKey correlationKeyI
             }
             return correlationKeyInfo;
         } catch (PersistenceException e) {
-            throw new RuntimeException(correlationKeyInfo + " already exists", e);
+            throw new RuntimeException(correlationKeyInfo + " failed to persist", e);
         }
     }