Bump org.springframework.boot from 3.1.3 to 3.1.4 in /kotlin

Bumps [org.springframework.boot](https://github.com/spring-projects/spring-boot) from 3.1.3 to 3.1.4.
- [Release notes](https://github.com/spring-projects/spring-boot/releases)
- [Commits](spring-projects/spring-boot@v3.1.3...v3.1.4)

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

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

kotlin/build.gradle

@@ -1,7 +1,7 @@
 import org.jetbrains.kotlin.gradle.tasks.KotlinCompile
 
 plugins {
- id 'org.springframework.boot' version '3.1.3'
+ id 'org.springframework.boot' version '3.1.4'
  id 'io.spring.dependency-management' version '1.1.3'
  id 'org.jetbrains.kotlin.jvm' version '1.9.10'
  id 'org.jetbrains.kotlin.plugin.spring' version '1.9.10'