PSGallery pre-release module support

[codykonior]

I've noticed when adding NonNodeData/Lability/Module references that use PSGallery, it won't pick up pre-release versions.

For example there's no way to reference https://www.powershellgallery.com/packages/SqlServer/21.1.18257-preview

If you include the -preview bit in the version, it makes Lability fail.