Bump spring-boot in /mybatis-jpa-extra-spring-boot-starter

Bumps [spring-boot](https://github.com/spring-projects/spring-boot) from 2.2.6.RELEASE to 2.2.11.RELEASE.
- [Release notes](https://github.com/spring-projects/spring-boot/releases)
- [Commits](https://github.com/spring-projects/spring-boot/compare/v2.2.6.RELEASE...v2.2.11.RELEASE)

---
updated-dependencies:
- dependency-name: org.springframework.boot:spring-boot
  dependency-type: direct:production
...
Signed-off-by: Ndependabot[bot] <support@github.com>

mybatis-jpa-extra-spring-boot-starter/pom.xml

@@ -19,7 +19,7 @@
 	<properties>
 		<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
 		<jdk.version>1.8</jdk.version>
-		<springboot.version>2.2.6.RELEASE</springboot.version>
+		<springboot.version>2.2.11.RELEASE</springboot.version>
 	</properties>
 	
 	<dependencies>