The ornamental design for a brushpackage, as shown and described.
FIG. 1 is a front perspective view of brush package showing my new design;
FIG. 2 is a front elevational view thereof;
FIG. 3 is a rear elevational view thereof;
FIG. 4 is a right side elevational view thereof;
FIG. 5 is a left side elevational view thereof;
FIG. 6 is a top plan view thereof; and,
FIG. 7 is a bottom plan view thereof.
The dotted lines shown in FIGS. 1—7 are included for the purpose of illustrating portions of the brush package that form no part of the claimed design.