Bump org.springframework.boot:spring-boot-dependencies

Bumps the dependencies group with 1 update: [org.springframework.boot:spring-boot-dependencies](https://github.com/spring-projects/spring-boot).


Updates `org.springframework.boot:spring-boot-dependencies` from 3.5.5 to 3.5.6
- [Release notes](https://github.com/spring-projects/spring-boot/releases)
- [Commits](spring-projects/spring-boot@v3.5.5...v3.5.6)

---
updated-dependencies:
- dependency-name: org.springframework.boot:spring-boot-dependencies
  dependency-version: 3.5.6
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: dependencies
...

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

Author: dependabot[bot]

validator-spring-starter/pom.xml

@@ -16,7 +16,7 @@
       <dependency>
         <groupId>org.springframework.boot</groupId>
         <artifactId>spring-boot-dependencies</artifactId>
-        <version>3.5.5</version>
+        <version>3.5.6</version>
         <type>pom</type>
         <scope>import</scope>
       </dependency>