Bump dependencies in poetry.lock (#954)

Regenerate lockfile with Poetry 2.3.2 and bump multiple dependencies. Notable changes: anyio 4.9.0→4.12.1, argon2-cffi (and argon2-cffi-bindings) → 25.1.0, arrow 1.3.0→1.4.0 (tzdata added), astroid updated (3.3.11 and added 4.0.4 for newer Python), asttokens 3.0.0→3.0.1, async-lru added/updated with Python-version markers, attrs 25.3.0→25.4.0, babel 2.17.0→2.18.0, beautifulsoup4 4.13.4→4.14.3, bleach variants split by Python version, certifi 2025.4.26→2026.2.25, cffi 1.17.1→2.0.0, plus assorted metadata/markers and extras adjustments. This is an auto-generated lockfile update from dependency resolution.

Author: LeMyst