chiavdf: Add version 1.1.14

[luhenry]

• Package: chiavdf
• Version: 1.1.14
• Source: https://github.com/Chia-Network/chiavdf
• Docs: https://github.com/Chia-Network/chiavdf

Compiles Chia's C++ VDF prover/verifier as a pybind11 extension linked against a patched GMP 6.2.1. Upstream publishes no riscv64 wheel on PyPI.

Mirrors upstream's build.yml and its [tool.cibuildwheel] config.

Differs from upstream

• before-all drops epel-release and lzip - neither exists for Rocky 10 riscv64.
• GMP comes from the checksummed .tar.xz release instead of .tar.lz - same sources, no lzip needed.

Matrix: cp312, cp313, cp314 - upstream skips free-threaded builds.

Testing

• same as upstream

License: Wheel bundles GMP (LGPL-3.0-or-later) and pybind11 (BSD-3-Clause); upstream ships no licence text for them, so the build adds it, and GMP's sources plus chiavdf's GMP replacement files are attached to the release.

Built on cp312, cp313 and cp314; 2 passed, 0 skipped each.

[github-actions]

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