0.13.0

• Add Python 3.14 support.
• Add Django 6.0 support.
• Drop Django < 4.2 support.
• Fix HIGH-severity SSRF vulnerability (CVE-2026-25645).
• Add unit tests for uncovered modules.
• Add OpenSSF Scorecard workflow.
• Pin actions to SHA and fix permissions.
• Bump requirements.
• Bump pre-commit hooks.
• Bump GitHub actions.