No META6.json file

```console
$ zef install Math::Polynomial
===> Searching for: Math::Polynomial
===> Extraction: Failed to find a META6.json file for Math::Polynomial -- failure is likely
No meta file? Path: /tmp/.zef.1735707932.58251/Math%3A%3APolynomial%3Aver%3C%2A%3E%3Aauth%3Cgithub%3Acolomon%3E.tar.gz
```

