FIG. 1 is a perspective view of a packaging container, showing my novel design;
FIG. 2 is a front view thereof;
FIG. 3 is a rear view thereof;
FIG. 4 is a right side view thereof;
FIG. 5 is a left side view thereof;
FIG. 6 is an enlarged top plan view thereof;
FIG. 7 is an enlarged bottom plan view thereof;
FIG. 8 is a perspective view thereof, showing the container in use;
FIG. 9 is a perspective view of an alternative embodiment thereof;
FIG. 10 is a front view thereof;
FIG. 11 is a rear view thereof;
FIG. 12 is a right side view thereof;
FIG. 13 is a left side view thereof;
FIG. 14 is an enlarged top plan view thereof; and,
FIG. 15 is an enlarged bottom plan view thereof.
The matter delineated in broken lines forms no part of the claimed ornamental design.