Remove unused Lombok import from TestTag class

The `@Getter` annotation and corresponding import were removed as they were not being used. This cleanup improves code readability and eliminates unnecessary dependencies.

Author: Ahn-JoonHun

spring-boot/src/test/java/com/mpc/springboot/shared/type/TestTag.java

@@ -1,7 +1,5 @@
 package com.mpc.springboot.shared.type;
 
-import lombok.Getter;
-
 
 public class TestTag {