The ornamental design for a beverage can, as shown and described.
FIG. 1 is a front perspective view of a beverage can showing my new design;
FIG. 2 is a front elevation thereof;
FIG. 3 is a rear elevation thereof;
FIG. 4 is a left side elevation thereof;
FIG. 5 is a right side elevation thereof; and,
FIG. 6 is a top plan view thereof.
The broken lines illustrating the inner top surface and features depict portions of the beverage can that form no part of the claimed design. The beverage can includes two break lines along its height drawn in dot-dash-dot broken lines. The break lines and any portion of the article between the break lines forms no part of the claimed design.