Hangar dependencies point to "null"

### Observed/problematic behavior When publishing a new version to a project that contains a hangar dependency, the href is always null This happens from both direct upload on hangar and via the hangar-publish plugin The target URL of the dependency looks like https://hangar.papermc.io/user/project/versions/null   ### Expected behavior Clicking the dependency should point to the actual project ### Steps to reproduce Publish a new version with a hangar dependency Click on the dependency Points to _current-project_/versions/null ### Other The project I noticed this problem first: https://hangar.papermc.io/TheNextLvl/Tweaks/versions/3.3.0 The actual dependency url: https://hangar.papermc.io/TheNextLvl/ServiceIO the problematic url: https://hangar.papermc.io/TheNextLvl/Tweaks/versions/null URLs work fine Editing a dependency to set it to a hangar dep doesn't work either, it always acts as URL