Blosc2 v4.0.0-b1

This is a beta version with hyperfast multithreaded expression calculatio via the incorporation of miniexpr; as well as better support for plugins (stay tuned for blosc2_openzl plugin!),

What's Changed

• Update pre-commit hooks by @pre-commit-ci[bot] in #537
• Fix fancy index item bug by @ykcUconn in #543
• feat: add support for .b2z, .b2d, .b2e files and update related tests by @bossbeagle1509 in #541
• Add none indexing for lazyudf/lazyarray by @lshaw8317 in #545
• Bump actions/download-artifact from 6 to 7 by @dependabot[bot] in #547
• Bump actions/upload-artifact from 5 to 6 by @dependabot[bot] in #548
• Update pre-commit hooks by @pre-commit-ci[bot] in #550
• PEP 639 compliance by @DimitriPapadopoulos in #552
• Multi-threaded reductions by @FrancescAlted in #549
• Implement PEP recommendations by @lshaw8317 in #560
• Add openzl_plugin support by @lshaw8317 in #559

New Contributors

• @ykcUconn made their first contribution in #543
• @bossbeagle1509 made their first contribution in #541

Full Changelog: v3.12.2...v4.0.0-b1