fix(dgw): resolve sspi dependency conflict by updating IronRDP to 0.7 (#1643)

Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>
Co-authored-by: CBenoit <3809077+CBenoit@users.noreply.github.com>

Author: Copilot