chore(main): release hugr-py 0.2.1

[github-actions]

🤖 I have created a release beep boop

0.2.1 (2024-05-20)

⚠ BREAKING CHANGES

• New serialisation schema
• rename Const::const_type and Value::const_type to Const::get_type and Value::get_type. These now match several other get_type functions (#1005)
• Many uses of Const now use Value.

Features

• Add serialization schema for metadata (#1038) (19bac62)
• Add LoadFunction node (#947) (81e9602)
• Encoder metadata in serialized hugr (#955) (0a44d48)
• Implement CustomConst serialization (#1005) (c45e6fc)
• Revert the removal of Value (#967) (0c354b6)
• Set default value for Conditional.sum_rows (#934) (d69198e)

Bug Fixes

• OpDef serialization (#1013) (3d8f6f6)
• input_port_types and other helper functions on pydantic schema (#958) (8651839)
• Remove insert_port_types for LoadFunction (#993) (acca7bf)
• Serialisation for Type, PolyFuncType, and Value (#968) (d913f40)
• Serialization for Ops (#997) (9ce6e49)
• set [build-system] in hugr-py/pyproject.toml (#1022) (b9c3ee4)

Code Refactoring

• rename Const::const_type and Value::const_type to Const::get_type and Value::get_type. These now match several other get_type functions (#1005) (c45e6fc)

---

This PR was generated with Release Please. See documentation.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 86.56%. Comparing base (0171ccd) to head (ca49753).

❗ Current head ca49753 differs from pull request most recent head abddebb

Please upload reports for the commit abddebb to get more accurate results.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #1040   +/-   ##
=======================================
  Coverage   86.56%   86.56%           
=======================================
  Files          83       83           
  Lines       17586    17586           
  Branches    17586    17586           
=======================================
  Hits        15223    15223           
  Misses       1543     1543           
  Partials      820      820           

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

[aborgna-q]

🤖 Release is at https://github.com/CQCL/hugr/releases/tag/hugr-py-v0.2.1 🌻