FIG. 1 is an elevated perspective view of the ornamental design for a lighting stake of the present invention;
FIG. 2 is a lowered perspective view of the ornamental design for a lighting stake of the present invention;
FIG. 3 is a front view of the ornamental design for a lighting stake of the present invention;
FIG. 4 is a rear view of the ornamental design for a lighting stake of the present invention;
FIG. 5 is a left side view of the ornamental design for a lighting stake of the present invention;
FIG. 6 is a right side view of the ornamental design for a lighting stake of the present invention;
FIG. 7 is a top view of the ornamental design for a lighting stake of the present invention;
FIG. 8 is a bottom view of the ornamental design for a lighting stake of the present invention;
FIG. 9 is a cross-sectional view of the ornamental design for a lighting stake of the present invention taken along line 9-9 of FIG. 7; and,
FIG. 10 is a cross-sectional view of the ornamental design for a lighting stake of the present invention taken along line 10-10 of FIG. 7.