Bump spring-boot-starter-parent

Bumps [spring-boot-starter-parent](https://github.com/spring-projects/spring-boot) from 3.0.2 to 3.0.4.
- [Release notes](https://github.com/spring-projects/spring-boot/releases)
- [Commits](spring-projects/spring-boot@v3.0.2...v3.0.4)

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

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

demo/openapi-generator-for-spring-demo-webmvc/pom.xml

@@ -5,7 +5,7 @@
     <parent>
         <groupId>org.springframework.boot</groupId>
         <artifactId>spring-boot-starter-parent</artifactId>
-        <version>3.0.2</version>
+        <version>3.0.4</version>
         <relativePath/> <!-- lookup parent from repository -->
     </parent>
     <groupId>de.qaware.tools.openapi-generator-for-spring.demo</groupId>