chore(release): 4.3.0

[he0119]

No description provided.

[Copilot]

Pull Request Overview

This PR bumps the project version to 4.3.0 and updates relevant project metadata.

• Update version numbers in pyproject.toml
• Add new release entry and update compare links in CHANGELOG.md

Reviewed Changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated no comments.

File	Description
pyproject.toml	Updated version string and current_version for release.
CHANGELOG.md	Added new release section and updated compare links.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 93.66%. Comparing base (32cf0ea) to head (bb1785f).
Report is 1 commits behind head on main.

✅ All tests successful. No failed tests found.

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #376   +/-   ##
=======================================
  Coverage   93.66%   93.66%           
=======================================
  Files          41       41           
  Lines        2274     2274           
=======================================
  Hits         2130     2130           
  Misses        144      144           

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