Would Argentina invade the Falklands without key warships?

Would Argentina still invade the Falklands without its French-built corvettes, British-built missile destroyers, and light carrier?

No. Without those fleet elements, Argentina is judged unlikely to launch the invasion.

The hypothetical removes Argentina's French-built corvettes, British-built guided-missile destroyers, and light carrier. Without those elements, the invasion is judged unlikely to begin. That changes the premise of the Falklands campaign before any tactical comparison becomes necessary.