build: bump spring.boot.version from 4.0.5 to 4.0.6 (#515)

Bumps `spring.boot.version` from 4.0.5 to 4.0.6.

Updates `org.springframework.boot:spring-boot-maven-plugin` 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-data-jpa` 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-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:spring-boot-starter-validation` 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-web` 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-maven-plugin
  dependency-version: 4.0.6
  dependency-type: direct:development
  update-type: version-update:semver-patch
- dependency-name: org.springframework.boot:spring-boot-starter-data-jpa
  dependency-version: 4.0.6
  dependency-type: direct:production
  update-type: version-update:semver-patch
- dependency-name: org.springframework.boot:spring-boot-starter-test
  dependency-version: 4.0.6
  dependency-type: direct:production
  update-type: version-update:semver-patch
- dependency-name: org.springframework.boot:spring-boot-starter-validation
  dependency-version: 4.0.6
  dependency-type: direct:production
  update-type: version-update:semver-patch
- dependency-name: org.springframework.boot:spring-boot-starter-web
  dependency-version: 4.0.6
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

pom.xml

@@ -28,7 +28,7 @@
     <msgpack.version>0.9.11</msgpack.version>
     <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
     <slf4j.version>2.0.17</slf4j.version>
-    <spring.boot.version>4.0.5</spring.boot.version>
+    <spring.boot.version>4.0.6</spring.boot.version>
     <xmlgraphics.version>2.11</xmlgraphics.version>
   </properties>
   <dependencyManagement>