chore(main): release 0.4.0

[github-actions]

🤖 I have created a release beep boop

0.4.0 (2023-11-01)

⚠ BREAKING CHANGES

• raise error if the flag wasn't found using the in-memory provider (#228)

Features

• implement initialize/shutdown on provider registration (#213) (84af1ae)
• pass flag_metadata from resolution to evaluation details (#212) (88a204d)

Bug Fixes

• Hook methods should have default non-abstract implementations (#216) (c661ab2)
• raise error if the flag wasn't found using the in-memory provider (#228) (0c314ab)

---

This PR was generated with Release Please. See documentation.

[codecov]

Codecov Report

Merging #230 (f774e8c) into main (107663a) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##             main     #230   +/-   ##
=======================================
  Coverage   93.84%   93.84%           
=======================================
  Files          16       16           
  Lines         439      439           
=======================================
  Hits          412      412           
  Misses         27       27           

Flag	Coverage Δ
unittests	93.84% <ø> (ø)

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[github-actions]

🤖 Release is at https://github.com/open-feature/python-sdk/releases/tag/v0.4.0 🌻