Bump org.springframework.boot:spring-boot (#600)

Bumps [org.springframework.boot:spring-boot](https://github.com/spring-projects/spring-boot) from 2.5.9 to 2.7.18.
- [Release notes](https://github.com/spring-projects/spring-boot/releases)
- [Commits](https://github.com/spring-projects/spring-boot/compare/v2.5.9...v2.7.18)

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

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
diff --git a/rocketmq-spring-boot-parent/pom.xml b/rocketmq-spring-boot-parent/pom.xml
index ab93afd..be43294 100644
--- a/rocketmq-spring-boot-parent/pom.xml
+++ b/rocketmq-spring-boot-parent/pom.xml
@@ -37,7 +37,7 @@
     <properties>
         <project.rootdir>${project.basedir}/..</project.rootdir>
 
-        <spring.boot.version>2.5.9</spring.boot.version>
+        <spring.boot.version>2.7.18</spring.boot.version>
         <spring.version>5.3.27</spring.version>
 
         <rocketmq.spring.boot.version>2.2.4-SNAPSHOT</rocketmq.spring.boot.version>