The ornamental design for the beanie, as shown and described.
FIG. 1 is a side view of a beanie of the present invention, showing the design in a position of use.
FIG. 2 is a front side view of the beanie.
FIG. 3 is a rear perspective view of the beanie.
FIG. 4 is a right side view of the beanie.
FIG. 5 is a left side view of the beanie.
FIG. 6 is a bottom side view of the beanie; and,
FIG. 7 is a top side view of the beanie.
The human figure drawn in broken lines in FIG. 1 is environment included to show the beanie in a position of use and forms no part of the claimed design. The dash-dash broken lines in the top of the beanie depict portions of the beanie that form no part of the claimed design. All other broken lines represent contour lines and form no part of the claimed design.