Bump springBoot from 3.5.6 to 4.0.6

Bumps `springBoot` from 3.5.6 to 4.0.6.

Updates `org.springframework.boot:spring-boot` from 3.5.6 to 4.0.6
- [Release notes](https://github.com/spring-projects/spring-boot/releases)
- [Commits](spring-projects/spring-boot@v3.5.6...v4.0.6)

Updates `org.springframework.boot:spring-boot-autoconfigure-processor` from 3.5.6 to 4.0.6
- [Release notes](https://github.com/spring-projects/spring-boot/releases)
- [Commits](spring-projects/spring-boot@v3.5.6...v4.0.6)

Updates `org.springframework.boot:spring-boot-autoconfigure` from 3.5.6 to 4.0.6
- [Release notes](https://github.com/spring-projects/spring-boot/releases)
- [Commits](spring-projects/spring-boot@v3.5.6...v4.0.6)

Updates `org.springframework.boot:spring-boot-test` from 3.5.6 to 4.0.6
- [Release notes](https://github.com/spring-projects/spring-boot/releases)
- [Commits](spring-projects/spring-boot@v3.5.6...v4.0.6)

Updates `org.springframework.boot` from 3.5.6 to 4.0.6
- [Release notes](https://github.com/spring-projects/spring-boot/releases)
- [Commits](spring-projects/spring-boot@v3.5.6...v4.0.6)

---
updated-dependencies:
- dependency-name: org.springframework.boot:spring-boot
  dependency-version: 4.0.6
  dependency-type: direct:production
  update-type: version-update:semver-major
- dependency-name: org.springframework.boot:spring-boot-autoconfigure-processor
  dependency-version: 4.0.6
  dependency-type: direct:production
  update-type: version-update:semver-major
- dependency-name: org.springframework.boot:spring-boot-autoconfigure
  dependency-version: 4.0.6
  dependency-type: direct:production
  update-type: version-update:semver-major
- dependency-name: org.springframework.boot:spring-boot-test
  dependency-version: 4.0.6
  dependency-type: direct:production
  update-type: version-update:semver-major
- dependency-name: org.springframework.boot
  dependency-version: 4.0.6
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

gradle/libs.versions.toml

@@ -18,7 +18,7 @@ pkl = "0.31.1"
 # https://central.sonatype.com/artifact/org.springframework.boot/spring-boot/dependencies
 spring = "7.0.7"
 # https://central.sonatype.com/artifact/org.springframework.boot/spring-boot/versions
-springBoot = "3.5.6"
+springBoot = "4.0.6"
 # https://central.sonatype.com/artifact/com.github.spotbugs/spotbugs-annotations/versions
 spotbugsAnnotations = "4.9.8"
 # https://github.com/diffplug/spotless/releases