Bump mybatis from 3.5.5 to 3.5.6

Bumps [mybatis](https://github.com/mybatis/mybatis-3) from 3.5.5 to 3.5.6.
- [Release notes](https://github.com/mybatis/mybatis-3/releases)
- [Commits](mybatis/mybatis-3@mybatis-3.5.5...mybatis-3.5.6)

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

pom.xml

@@ -105,7 +105,7 @@
     <osgi.import>org.springframework.batch.*;resolution:=optional,*</osgi.import>
     <osgi.dynamicImport>*</osgi.dynamicImport>
 
-    <mybatis.version>3.5.5</mybatis.version>
+    <mybatis.version>3.5.6</mybatis.version>
     <spring.version>5.2.9.RELEASE</spring.version>
     <spring-batch.version>4.2.4.RELEASE</spring-batch.version>
     <module.name>org.mybatis.spring</module.name>