TagBot ignores the package if the UUID is uppercase

[abelsiqueira]

I recently renamed a package and had to change the UUID. I used uuidgen, which gave me a UUID with uppercase characters.
This registered fine, but the registry converts the UUID to lowercase - as I noticed later. This caused TagBot to ignore the package and return "This package is not registered, skipping" (JuliaBesties/BestieTemplate.jl#294).

I already fixed my issue so this is not urgent for me and probably super rare, so I thought about not opening an issue, but it was also not clear how to debug, so hopefully if people find this issue in the future, this will help them debug the problem.

If you want help fixing it, I can try to write a PR.