Bump mapStructVersion from 1.5.5.Final to 1.6.0 (#9055)

Bumps `mapStructVersion` from 1.5.5.Final to 1.6.0.

Updates `org.mapstruct:mapstruct` from 1.5.5.Final to 1.6.0
- [Release notes](https://github.com/mapstruct/mapstruct/releases)
- [Changelog](https://github.com/mapstruct/mapstruct/blob/main/NEXT_RELEASE_CHANGELOG.md)
- [Commits](mapstruct/mapstruct@1.5.5.Final...1.6.0)

Updates `org.mapstruct:mapstruct-processor` from 1.5.5.Final to 1.6.0
- [Release notes](https://github.com/mapstruct/mapstruct/releases)
- [Changelog](https://github.com/mapstruct/mapstruct/blob/main/NEXT_RELEASE_CHANGELOG.md)
- [Commits](mapstruct/mapstruct@1.5.5.Final...1.6.0)

---
updated-dependencies:
- dependency-name: org.mapstruct:mapstruct
  dependency-type: direct:production
  update-type: version-update:semver-minor
- dependency-name: org.mapstruct:mapstruct-processor
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

build.gradle.kts

@@ -34,7 +34,7 @@ extra.apply {
     // Override jooq version since the official gradle plugin is on in 3.19.x, remove if not needed
     // with the next springboot release
     set("jooq.version", "3.19.6")
-    set("mapStructVersion", "1.5.5.Final")
+    set("mapStructVersion", "1.6.0")
     set("nodeJsVersion", "18.18.0")
     set("protobufVersion", "3.25.3")
     set("reactorGrpcVersion", "1.2.4")