Replace old receptacle/switch combination with a GFCI/switch combination
Given the wire topology you have there, it ain't gonna happen.
There is no way to protect another recep with only 3 wires coming into the box.  You need a minimum of 4: unprotected supply Hot and Neutral, and protected-zone Hot and Neutral.
You can install that GFCI+recep+switch combo, but you won't be able to use the LOAD terminals for anything, and the only socket that will be protected will be the one right there.