assign profilesActive default value in MybatisPlusConfig

hippo4j-config/src/main/java/cn/hippo4j/config/config/MybatisPlusConfig.java

@@ -30,8 +30,7 @@ import org.springframework.context.annotation.Configuration;
  */
 @Configuration
 public class MybatisPlusConfig {
-    
+    @Value("${spring.profiles.active:mysql}")
-    @Value("${spring.profiles.active}")
     private String profilesActive;
 
     @Bean