build(deps): bump io.spring.dependency-management from 1.1.4 to 1.1.6

Bumps [io.spring.dependency-management](https://github.com/spring-gradle-plugins/dependency-management-plugin) from 1.1.4 to 1.1.6.
- [Release notes](https://github.com/spring-gradle-plugins/dependency-management-plugin/releases)
- [Commits](spring-gradle-plugins/dependency-management-plugin@v1.1.4...v1.1.6)

---
updated-dependencies:
- dependency-name: io.spring.dependency-management
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

build.gradle

@@ -3,7 +3,7 @@ plugins {
     // https://docs.spring.io/spring-boot/docs/current/gradle-plugin/reference/htmlsingle/
     id 'org.springframework.boot' version '3.1.5'
     // https://docs.spring.io/dependency-management-plugin/docs/current-SNAPSHOT/reference/html/
-    id "io.spring.dependency-management" version "1.1.4"
+    id "io.spring.dependency-management" version "1.1.6"
     // Lombok generates getter and setter and more. https://projectlombok.org/
     // check for new versions here: https://plugins.gradle.org/plugin/io.freefair.lombok
     id "io.freefair.lombok" version "8.4"