Revert "[tests] Figured mockito out, was hidden in xml (wasn't expecting that)"

This reverts commit 67417b3.

Author: hazendaz

src/test/java/org/mybatis/spring/sample/config/applicationContext-sqlsession.xml

@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <!--
 
-    Copyright 2010-2023 the original author or authors.
+    Copyright 2010-2022 the original author or authors.
 
     Licensed under the Apache License, Version 2.0 (the "License");
     you may not use this file except in compliance with the License.
@@ -29,7 +29,9 @@
     <import resource="classpath:org/mybatis/spring/sample/config/applicationContext-infrastructure.xml"/>
 
     <!-- Mock for preventing bean creation error -->
-    <bean id="userMapper" class="org.mockito.Mockito" factory-method="mock" />
+    <bean id="userMapper" class="org.mockito.Mockito" factory-method="mock">
+      <constructor-arg value="org.mybatis.spring.sample.mapper.UserMapper"/>
+    </bean>
 
     <!-- Classic DAO pattern built with an interface and an implementation. -->
     <bean id="userDao" class="org.mybatis.spring.sample.dao.UserDaoImpl" autowire="byType" />