v0.5.0: Release/0.5.0 (#8)

🚨 Breaking Changes (Rust API only)

• Upgraded cel crate (formerly cel-interpreter) 0.10.0 → 0.11.0:
  • Function registration now uses IntoFunction trait.
  • Python integration updated to use Arguments extractor for variadic args.
  • Imports renamed from cel_interpreter:: to cel::.
  • No changes to Python API – all existing code continues to work.

✨ Changed

• Internal: Refactored Python integration to match new CEL API.
• Updated dependencies:
  • pyo3: 0.25.0 → 0.25.1
  • pyo3-log: 0.12.1 → 0.12.4

🗒 Maintainer Notes

• Prepared for upcoming CEL Rust features:
  • Enhanced type system & introspection
  • type() function support
  • Optional value handling