Update cbor2 to 5.8.0

[pyup-bot]

This PR updates cbor2 from 5.6.5 to 5.8.0.

Changelog

5.8.0

- Added readahead buffering to C decoder for improved performance. The decoder now uses a 4 KB buffer by default to reduce the number of read calls. Benchmarks show 20-140% performance improvements for decoding operations. ([\268+](https://github.com/agronholm/cbor2/pull/268); PR by andreer)
- Fixed Python decoder not preserving share index when decoding array items containing nested shareable tags, causing shared references to resolve to wrong objects ([\267+](https://github.com/agronholm/cbor2/pull/267); PR by andreer)
- Reset shared reference state at the start of each top-level encode/decode operation ([\266+](https://github.com/agronholm/cbor2/pull/266); PR by andreer)

5.7.1

- Improved performance on decoding large definite bytestrings (240 \<<https://github.com/agronholm/cbor2/issues/240>\>\_; PR by dwpaley)
- Fixed a read(-1) vulnerability caused by boundary handling error (264 \<<https://github.com/agronholm/cbor2/issues/264>\>\_; PR by tylzh97)

5.7.0

- Added support for Python 3.14 (no free-threading support yet, sorry)
- Dropped support for Python 3.8 (247 \<<https://github.com/agronholm/cbor2/pull/247>\>\_; PR by hugovk)
- Added support for encoding indefinite containers (256 \<<https://github.com/agronholm/cbor2/pull/256>\>\_; PR by CZDanol)
- Added complex number support (tag 43000) (249 \<<https://github.com/agronholm/cbor2/pull/249>\>\_; PR by chillenb)

Links

• PyPI: https://pypi.org/project/cbor2
• Changelog: https://data.safetycli.com/changelogs/cbor2/