Moved spring-mockito to testing-modules (#12476)

Co-authored-by: panagiotiskakos <panagiotis.kakos@libra-is.com>

testing-modules/spring-mockito/src/main/java/com/baeldung/UserService.java

@@ -0,0 +1,19 @@
+package com.baeldung;
+
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Service;
+
+@Service
+public class UserService {
+
+    private NameService nameService;
+
+    @Autowired
+    public UserService(NameService nameService) {
+        this.nameService = nameService;
+    }
+
+    public String getUserName(String id) {
+        return nameService.getUserName(id);
+    }
+}