failure when trying to publish a `-beta` version

When trying to publish package:lints:

```
Pubspec version (3.0.0-beta) and git tag (v3.0.0-beta) don't agree.
```

From https://github.com/dart-lang/lints/actions/runs/6315369437/job/17147753300.

Perhaps due to issues handling a `-beta` version?
