The ornamental design for bicycle light, as shown and described.
FIG. 1 illustrates a back view of the bicycle light showing the new design;
FIG. 2 illustrates a front view of the bicycle light of FIG. 1;
FIG. 3 illustrates a perspective view of the front side of the bicycle light of FIG. 1;
FIG. 4 illustrates a side and top view of the bicycle light of FIG. 1; and,
FIG. 5 illustrates a top and bottom view of the bicycle light of FIG. 1.
The broken line showing of the back of the claim is included for the purpose of illustrating environmental matter and forms no part of the claimed design.