The ornamental design for a beverageholder, as shown and described.
FIG. 1 is a front perspective view of the beverage holder showing my new design, the broken lines are for illustrative purposes only and form no part of the claimed design;
FIG. 2 is a top plan view of the invention illustrated in FIG. 1;
FIG. 3 is a left elevation view of the invention illustrated in FIG. 1;
FIG. 4 is a right elevation view of the invention illustrated in FIG. 1; and,
FIG. 5 is a bottom plan view of the invention illustrated in FIG. 1.