🐛 ProgressRing overflows its parent

[robkri]

Describe the bug
The ProgressRing widget overflows its parent's (here: a yellow Container) border:

To Reproduce

void main(List<String> args) {
  runApp(FluentApp(
    home: Container(
        color: Colors.white,
        child: Center(
          child: Container(
            width: 100,
            height: 100,
            color: Colors.yellow,
            child: const ProgressRing(),
          ),
        )),
  ));
}

Expected behavior
The progress ring stays entirely inside its parent's borders.