The ornamental design for a lightingassembly, as shown and described.
FIG. 1 is a top perspective view of a lighting assembly showing our new design;
FIG. 2 is a front view thereof;
FIG. 3 is a rear view thereof.
FIG. 4 is a left side view thereof;
FIG. 5 is a right side view thereof;
FIG. 6 is a top view thereof;
FIG. 7 is a bottom view thereof; and,
FIG. 8 is a bottom perspective view thereof.
The broken lines depicting the remainder of the lighting assembly show features that form no part of the claimed design. Where a surface forming part of the claimed design is adjacent to an unclaimed surface, the broken lines indicating the adjacent unclaimed surface represent a boundary.