RemoveUnusedImports does not work

Not sure this is related to https://github.com/diffplug/spotless/issues/1819#issuecomment-2830878265, so opening a new issue here.

The `removeUnusedImports` is not working, with the setup

```

com.diffplug.spotless
spotless-maven-plugin
2.44.4



2.63.0
PALANTIR
true







```
on Maven 3.9.9 and JDK 21.

There is no error in the console but unused imports are not removed at the end of the run.