expose KNOWN_ARCHITECTURES as public API (#56)

- Add KNOWN_ARCHITECTURES frozenset to _py_info.py and export it from
the package's public API
  - Expand normalize_isa() to also normalize i386 and i586 → x86
  - Update test to reference the new constant instead of a hardcoded set

Co-authored-by: Rahul Devikar <[email protected]>

✨ feat(interpreter): increase query timeout to 15s with override (#53)

🐛 fix(test): add loongarch64 to known ISAs (#50)

🐛 fix(discovery): match prerelease versions against major.minor specs (…

…#48)

Update release.yaml

📝 docs(api): add :param: descriptions to all public APIs (#32)

✨ feat: rewrite as standalone package from virtualenv (#28)