Upgrade dependencies to fix 15 security vulnerabilities (Dependabot alerts)

aiohttp 3.13.3→3.13.5, cryptography 46.0.5→46.0.6, pyasn1 0.6.2→0.6.3,
pygments 2.19.2→2.20.0, requests 2.32.5→2.33.1

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: rustyconover