[galois_2p8] Buffer Overflow in galois_2p8

In galois_2p8 before 0.1.2, PrimitivePolynomialField::new has an off-by-one buffer overflow for a vector.

References

• https://nvd.nist.gov/vuln/detail/CVE-2022-24988
• https://github.com/djsweet/galois_2p8/blob/master/CHANGELOG.md
• https://github.com/advisories/GHSA-9p8q-j6q5-mjw8