修复报错的单元测试

yudao-framework/yudao-spring-boot-starter-biz-ip/pom.xml

@@ -34,7 +34,6 @@
         <dependency>
             <groupId>org.lionsoul</groupId>
             <artifactId>ip2region</artifactId>
-            <version>${ip2region.version}</version>
         </dependency>
 
         <dependency>

yudao-framework/yudao-spring-boot-starter-biz-ip/src/main/java/cn/iocoder/yudao/framework/ip/core/utils/AreaUtils.java

@@ -28,7 +28,9 @@ public class AreaUtils {
     @SuppressWarnings("InstantiationOfUtilityClass")
     private final static AreaUtils INSTANCE = new AreaUtils();
 
-
+    /**
+     * Area 内存缓存，提升访问速度
+     */
     private static Map<Integer, Area> areas;
 
     private AreaUtils() {