deps: update dependency org.mybatis.spring.boot:mybatis-spring-boot-starter to v3.0.4 (#1844)

Author: renovate-bot

samples/spring-data-mybatis/pom.xml

@@ -53,7 +53,7 @@
     <dependency>
       <groupId>org.mybatis.spring.boot</groupId>
       <artifactId>mybatis-spring-boot-starter</artifactId>
-      <version>3.0.3</version>
+      <version>3.0.4</version>
     </dependency>
     <dependency>
       <groupId>org.mybatis.dynamic-sql</groupId>