The ornamental design for an archery rack, as shown and described.
FIG. 1 is a front perspective view of an archery rack, showing our new design;
FIG. 2 is a front view;
FIG. 3 is a side view;
FIG. 4 is a top view;
FIG. 5 is a bottom view; and,
FIG. 6 is a rear view thereof.