Update Maven Central badge in README.md

Author: hazendaz

README.md

@@ -7,7 +7,6 @@
 [![Security Rating](https://sonarcloud.io/api/project_badges/measure?project=mybatis_spring-native&metric=security_rating)](https://sonarcloud.io/summary/new_code?id=mybatis_spring-native)
 [![Maintainability Rating](https://sonarcloud.io/api/project_badges/measure?project=mybatis_spring-native&metric=sqale_rating)](https://sonarcloud.io/summary/new_code?id=mybatis_spring-native)
 
-[![Maven central](https://maven-badges.herokuapp.com/maven-central/org.mybatis.spring.native/mybatis-spring-native/badge.svg)](https://maven-badges.herokuapp.com/maven-central/org.mybatis.spring.native/mybatis-spring-native)
 [![Maven Central](https://img.shields.io/maven-central/v/org.mybatis/spring-native.svg)](https://central.sonatype.com/artifact/org.mybatis/spring-native)
 [![Docs](https://img.shields.io/badge/docs-mybatis.org-blue?logo=github)](https://mybatis.org/spring-native/)
 [![License](https://img.shields.io/:license-apache-brightgreen.svg)](https://www.apache.org/licenses/LICENSE-2.0.html)