fast-json-repair: Add version 0.2.3

[luhenry]

• Package: fast-json-repair
• Version: 0.2.3
• Source: https://github.com/Rusty-Ports/fast_json_repair
• Docs: https://github.com/Rusty-Ports/fast_json_repair#readme

Compiles the PyO3 Rust extension fast_json_repair._fast_json_repair as a single cp311-abi3 wheel. Upstream publishes no riscv64 wheel.

Mirrors upstream's build.yml (quality and linux jobs).

Differs from upstream

• Native build in the manylinux_2_39 image instead of --zig cross-compilation - riscv64 runner builds natively.
• -i python3.11 instead of --find-interpreter - abi3 wheel is built once on its floor interpreter.
• Lint, type-check and clippy steps dropped - not wheel-related.

Matrix: cp311-abi3 only, same as upstream (pyo3 abi3-py311; upstream ships no free-threaded wheel).

Testing

• same as upstream (pytest on 3.11), against the installed wheel.

License: OK

Built on cp311; 42 passed, 0 skipped (local x86_64 rehearsal of the same steps).