Bump org.springframework.boot:spring-boot-autoconfigure (#579)

Bumps [org.springframework.boot:spring-boot-autoconfigure](https://github.com/spring-projects/spring-boot) from 2.5.9 to 2.5.15.
- [Release notes](https://github.com/spring-projects/spring-boot/releases)
- [Commits](spring-projects/spring-boot@v2.5.9...v2.5.15)

---
updated-dependencies:
- dependency-name: org.springframework.boot:spring-boot-autoconfigure
  dependency-type: direct:production
...

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

rocketmq-v5-client-spring-boot-parent/pom.xml

@@ -35,7 +35,7 @@
 
     <properties>
         <project.rootdir>${project.basedir}/..</project.rootdir>
-        <spring.boot.version>2.5.9</spring.boot.version>
+        <spring.boot.version>2.5.15</spring.boot.version>
         <spring.version>5.3.20</spring.version>
 
         <rocketmq.client.spring.boot.version>2.2.4-SNAPSHOT</rocketmq.client.spring.boot.version>