## Description
When we tagged `v2026.0.0-alpha-1`, we broke the versioning-helper
logic. It doesn't expect `alpha` in the version string. This PR adds
matching for lowercase alphanumeric to the versioning helper, which
resolves that issue.
Also turns out `getProviders()` is now broken as a gradle method. Sad.
## Meta
Merge checklist:
- [x] Pull Request title is [short, imperative
summary](https://cbea.ms/git-commit/) of proposed changes
- [x] The description documents the _what_ and _why_
- [ ] If this PR changes behavior or adds a feature, user documentation
is updated
- [ ] If this PR touches photon-serde, all messages have been
regenerated and hashes have not changed unexpectedly
- [ ] If this PR touches configuration, this is backwards compatible
with settings back to v2025.3.2
- [ ] If this PR touches pipeline settings or anything related to data
exchange, the frontend typing is updated
- [ ] If this PR addresses a bug, a regression test for it is added
