fix: recompile security-guard.lock.yml to fix frontmatter hash mismatch (#1652)

Agent-Logs-Url: https://github.com/github/gh-aw-firewall/sessions/0e4673e6-6f23-4e2d-8cc7-ccb922b81091

Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>
Co-authored-by: lpcox <15877973+lpcox@users.noreply.github.com>

Author: Copilot