Bump spring-boot from 4.0.5 to 4.0.6

Bumps `spring-boot` from 4.0.5 to 4.0.6.

Updates `org.springframework.boot:spring-boot-dependencies` from 4.0.5 to 4.0.6
- [Release notes](https://github.com/spring-projects/spring-boot/releases)
- [Commits](spring-projects/spring-boot@v4.0.5...v4.0.6)

Updates `org.springframework.boot:spring-boot-starter-webmvc` from 4.0.5 to 4.0.6
- [Release notes](https://github.com/spring-projects/spring-boot/releases)
- [Commits](spring-projects/spring-boot@v4.0.5...v4.0.6)

Updates `org.springframework.boot:spring-boot-starter-webmvc-test` from 4.0.5 to 4.0.6
- [Release notes](https://github.com/spring-projects/spring-boot/releases)
- [Commits](spring-projects/spring-boot@v4.0.5...v4.0.6)

Updates `org.springframework.boot` from 4.0.5 to 4.0.6
- [Release notes](https://github.com/spring-projects/spring-boot/releases)
- [Commits](spring-projects/spring-boot@v4.0.5...v4.0.6)

---
updated-dependencies:
- dependency-name: org.springframework.boot:spring-boot-dependencies
  dependency-version: 4.0.6
  dependency-type: direct:production
  update-type: version-update:semver-patch
- dependency-name: org.springframework.boot:spring-boot-starter-webmvc
  dependency-version: 4.0.6
  dependency-type: direct:production
  update-type: version-update:semver-patch
- dependency-name: org.springframework.boot:spring-boot-starter-webmvc-test
  dependency-version: 4.0.6
  dependency-type: direct:production
  update-type: version-update:semver-patch
- dependency-name: org.springframework.boot
  dependency-version: 4.0.6
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

gradle/libs.versions.toml

@@ -5,7 +5,7 @@ jacoco = "0.8.14"
 javafxplugin = "0.1.0"
 junit-jupiter = "6.0.3"
 pmd = "7.16.0"
-spring-boot = "4.0.5"
+spring-boot = "4.0.6"
 
 [libraries]
 assertj-core = { module = "org.assertj:assertj-core", version.ref = "assertj-core" }