Fix NoActionHotRodTransactionWrapper using default exists implementation

Closes #19196

model/map-hot-rod/src/main/java/org/keycloak/models/map/storage/hotRod/transaction/NoActionHotRodTransactionWrapper.java

@@ -69,6 +69,16 @@ public class NoActionHotRodTransactionWrapper<K, V extends AbstractEntity & Upda
         return actualTx.delete(queryParameters);
     }
 
+    @Override
+    public boolean exists(String key) {
+        return actualTx.exists(key);
+    }
+
+    @Override
+    public boolean exists(QueryParameters<M> queryParameters) {
+        return actualTx.exists(queryParameters);
+    }
+
     @Override
     public void begin() {
         // Does nothing