chore(deps): bump org.springframework.boot:spring-boot-dependencies

Bumps [org.springframework.boot:spring-boot-dependencies](https://github.com/spring-projects/spring-boot) from 4.0.2 to 4.0.3.
- [Release notes](https://github.com/spring-projects/spring-boot/releases)
- [Commits](spring-projects/spring-boot@v4.0.2...v4.0.3)

---
updated-dependencies:
- dependency-name: org.springframework.boot:spring-boot-dependencies
  dependency-version: 4.0.3
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

agentscope-examples/boba-tea-shop/pom.xml

@@ -46,7 +46,7 @@
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
 
         <!-- Spring Boot -->
-        <spring-boot.version>4.0.2</spring-boot.version>
+        <spring-boot.version>4.0.3</spring-boot.version>
 
         <!-- AgentScope -->
         <agentscope.version>${revision}</agentscope.version>

agentscope-extensions/agentscope-spring-boot-starters/pom.xml

@@ -32,7 +32,7 @@
 
     <properties>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
-        <spring-boot.version>4.0.2</spring-boot.version>
+        <spring-boot.version>4.0.3</spring-boot.version>
         <maven.deploy.skip>false</maven.deploy.skip>
     </properties>