Update dependency org.mybatis.spring.boot:mybatis-spring-boot-starter to v3

Author: renovate[bot]

springboot2-mybatis-mysql-example/pom.xml

@@ -29,7 +29,7 @@
 		<dependency>
 			<groupId>org.mybatis.spring.boot</groupId>
 			<artifactId>mybatis-spring-boot-starter</artifactId>
-			<version>1.2.1</version>
+			<version>3.0.2</version>
 		</dependency>
 
 		<dependency>