Could not create task ':spotlessGroovy' w/ plugin `io.spring.dependency-management` > 1.1.0

Spotless 6.20.0 does not get along well with the Spring Dependency Management Plugin in recent versions.
I'm getting
```
Could not determine the dependencies of task ':spotlessCheck'.
> Could not create task ':spotlessGroovyCheck'.
> Could not create task ':spotlessGroovy'.
> You need to add a repository containing the '[dev.equo.ide:solstice:1.3.1, [...], org.osgi:org.osgi.util.promise:1.3.0, org.tukaani:xz:1.9]' artifact in 'build.gradle'.
E.g.: 'repositories { mavenCentral() }'
```
It does work with `io.spring.dependency-management` 1.1.0.

This is the changelog for 1.1.1: https://github.com/spring-gradle-plugins/dependency-management-plugin/releases/tag/v1.1.1

I'm raising the issue here because I found similar bug reports in the closed issues and it's probably easier for the Spotless devs to figure out what might be happening here.

Sample project: [sample.zip](https://github.com/diffplug/spotless/files/12212629/sample.zip)

Inizia con l’archivio sample.zip allegato e il relativo build.gradle, riproduci il fallimento con io.spring.dependency-management 1.1.1 e poi confrontalo con 1.1.0. Traccia la risoluzione delle dipendenze quando viene creata l’attività spotlessGroovy. Il lavoro è completato quando l’esempio funziona con la versione 1.1.1 senza richiedere un workaround aggiuntivo per il repository.

Scritto dal modello di indicizzazione a partire dal testo della issue.