chore(deps): bump spring-boot.version from 3.5.8 to 4.0.0

Bumps `spring-boot.version` from 3.5.8 to 4.0.0.

Updates `org.springframework.boot:spring-boot-dependencies` from 3.5.8 to 4.0.0
- [Release notes](https://github.com/spring-projects/spring-boot/releases)
- [Commits](spring-projects/spring-boot@v3.5.8...v4.0.0)

Updates `org.springframework.boot:spring-boot-maven-plugin` from 3.5.8 to 4.0.0
- [Release notes](https://github.com/spring-projects/spring-boot/releases)
- [Commits](spring-projects/spring-boot@v3.5.8...v4.0.0)

---
updated-dependencies:
- dependency-name: org.springframework.boot:spring-boot-dependencies
  dependency-version: 4.0.0
  dependency-type: direct:production
  update-type: version-update:semver-major
- dependency-name: org.springframework.boot:spring-boot-maven-plugin
  dependency-version: 4.0.0
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

pom.xml

@@ -52,7 +52,7 @@
     <maven.compiler.release>17</maven.compiler.release>
     <spotless.version>3.1.0</spotless.version>
     <josdk.version>5.2.0</josdk.version>
-    <spring-boot.version>3.5.8</spring-boot.version>
+    <spring-boot.version>4.0.0</spring-boot.version>
     <surefire.version>3.5.4</surefire.version>
     <fabric8-client.version>7.3.1</fabric8-client.version>
     <jenvtest.version>0.9.7</jenvtest.version>