build(deps): bump org.springframework.boot from 3.3.3 to 3.4.0

Bumps [org.springframework.boot](https://github.com/spring-projects/spring-boot) from 3.3.3 to 3.4.0.
- [Release notes](https://github.com/spring-projects/spring-boot/releases)
- [Commits](spring-projects/spring-boot@v3.3.3...v3.4.0)

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

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

Author: dependabot[bot]

settings.gradle

@@ -1,7 +1,7 @@
 pluginManagement {
     plugins {
         id 'io.spring.dependency-management' version "1.1.6"
-        id 'org.springframework.boot' version "3.3.3"
+        id 'org.springframework.boot' version "3.4.0"
         ['jvm', 'plugin.spring', 'plugin.jpa'].forEach(postfix -> {
             id "org.jetbrains.kotlin.${postfix}" version "1.8.0"
         })