Changes to line ending rules in 6.6.0?

I've just tried to upgrade a project that was using version 6.5.2 of the Gradle plugin to 6.6.0 or 6.6.1.

This works fine everywhere except for the Windows CI build that I run on GitHub Actions. This has started failing, and Spotless wants to replace the Unix-style line endings with Windows-style line endings in one file ([example](https://github.com/batect/batect/runs/6536190875?check_suite_focus=true#step:5:85)).

The same thing works fine on a local Windows machine.

Have there been any changes related to this in version 6.6? Or is this a bug?