v4.3.3

Fixed

• Relaxed structlog version constraint to >=24.1.0,<26.0 to support structlog 25.x (#429 by @Falydoor).
• Updated transitive dependencies to resolve Dependabot security advisories.

Maintenance

• Replaced ggshield pre-commit hook with GitHub Secret Scanning.
• Unit tests and linting now run automatically on every pull request.
• Updated contributor documentation to use uv as the recommended dependency manager.
• Bumped GitHub Actions versions: actions/checkout v4→v6, actions/setup-python v5→v6, astral-sh/setup-uv v5→v8.1.0.