Releases with non-version tags are named d-<tag> instead of dev-<tag> #61

Description

A GitHub release whose tag and name are not valid versions is named d-<tag> instead of dev-<tag>. For a release with tag_name: nightly and name: Nightly, getName() returns d-nightly. The versions command shows this name, and satisfies() checks constraints against it.

GitHubRelease::getTagName() correctly falls back to dev-nightly. Release::simplifyReleaseName() then normalizes the name, splits it on - and always cuts the last two characters of the first part. That step is meant to strip the .0 that VersionParser::normalize() appends to numeric versions (2024.1.0.0 becomes 2024.1.0), but for dev-nightly it turns dev into d.

Steps to reproduce

1. Remove #[Skip] from GitHubReleaseTest::fromApiResponseNamesUnparsableReleaseAsDevBranch.
2. Run vendor/bin/testo --filter=fromApiResponseNamesUnparsableReleaseAsDevBranch.

Additional context

The release lookup may be replaced by DLoad in #49, in which case this code goes away.