How to adjust strike that’s too small for metal jam?
Strike plates are rarely proprietary to the door knob itself. Most are the same size, some slightly different in size or screw hole placement but the catch of the door knob should fit in the catch hole  of all of them if they are lined up right.
Since you have metal door jamb it is not easy to modify your jamb.
Try using the old strike plate, it should work just fine.
Credit to Mazura for thinking of it first.