Bump spring-boot-version from 3.3.5 to 3.4.0

Bumps `spring-boot-version` from 3.3.5 to 3.4.0.

Updates `org.springframework.boot:spring-boot-dependencies` from 3.3.5 to 3.4.0
- [Release notes](https://github.com/spring-projects/spring-boot/releases)
- [Commits](spring-projects/spring-boot@v3.3.5...v3.4.0)

Updates `org.springframework.boot:spring-boot-maven-plugin` from 3.3.5 to 3.4.0
- [Release notes](https://github.com/spring-projects/spring-boot/releases)
- [Commits](spring-projects/spring-boot@v3.3.5...v3.4.0)

---
updated-dependencies:
- dependency-name: org.springframework.boot:spring-boot-dependencies
  dependency-type: direct:production
  update-type: version-update:semver-minor
- dependency-name: org.springframework.boot:spring-boot-maven-plugin
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>

pom.xml

@@ -27,7 +27,7 @@
     <camel-version>4.8.1</camel-version>
     <quarkus-version>3.16.1</quarkus-version>
     <spring-version>6.1.4</spring-version>
-    <spring-boot-version>3.3.5</spring-boot-version>
+    <spring-boot-version>3.4.0</spring-boot-version>
 
     <jolokia-version>2.1.1</jolokia-version>
     <prometheus-jmx-exporter-version>0.20.0</prometheus-jmx-exporter-version>