The ornamental design for an electronic horseshoelock, as shown and described.
FIG. 1 is a perspective view of an electronic horseshoe lock, showing my new design;
FIG. 2 is another perspective view thereof;
FIG. 3 is a front view thereof;
FIG. 4 is a rear view thereof;
FIG. 5 is a left side view thereof;
FIG. 6 is a right side view thereof;
FIG. 7 is a top plan view thereof; and,
FIG. 8 is a bottom plan view thereof.
The broken line showing of an electronic horseshoe lock is for the purpose of illustrating portions of the article and forms no part of the claimed design.