Bump the maven group with 2 updates

Bumps the maven group with 2 updates: [org.springframework.boot:spring-boot-starter-parent](https://github.com/spring-projects/spring-boot) and [org.springframework.boot:spring-boot-maven-plugin](https://github.com/spring-projects/spring-boot).


Updates `org.springframework.boot:spring-boot-starter-parent` from 3.3.6 to 3.4.0
- [Release notes](https://github.com/spring-projects/spring-boot/releases)
- [Commits](spring-projects/spring-boot@v3.3.6...v3.4.0)

Updates `org.springframework.boot:spring-boot-maven-plugin` from 3.3.6 to 3.4.0
- [Release notes](https://github.com/spring-projects/spring-boot/releases)
- [Commits](spring-projects/spring-boot@v3.3.6...v3.4.0)

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

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

pom.xml

@@ -54,7 +54,7 @@
         <kotlinx-coroutines.version>1.9.0</kotlinx-coroutines.version>
         <kotlinx-coroutines-debug.version>1.9.0</kotlinx-coroutines-debug.version>
 
-        <spring-boot.version>3.3.6</spring-boot.version>
+        <spring-boot.version>3.4.0</spring-boot.version>
         <springdoc-openapi-starter-webmvc-ui.version>2.6.0</springdoc-openapi-starter-webmvc-ui.version>
 
         <postgresql.version>42.7.4</postgresql.version>