fix(security): patch 12 vulnerabilities (#10)

Updates h11, urllib3, mcp, starlette, requests
CVEs: CVE-2025-43859, CVE-2026-21441, CVE-2025-66471, CVE-2025-66418, CVE-2025-66416, CVE-2025-62727, CVE-2025-53366, CVE-2025-53365, CVE-2025-54121, CVE-2025-50182, CVE-2025-50181, CVE-2024-47081

RFC: #9
Generated by git-steer security sweep

Co-authored-by: git-steer[bot] <git-steer[bot]@users.noreply.github.com>

Author: ry-ops