The ornamental design for a packagingcontainer, as shown and described.
FIG. 1 is a front view of a packaging container showing our new design;
FIG. 2 is a rear view thereof;
FIG. 3 is a left side view thereof;
FIG. 4 is a right side view thereof;
FIG. 5 is a top plan view thereof;
FIG. 6 is a bottom view thereof;
FIG. 7 is a perspective view thereof;
FIG. 8 is an enlarged, partial view taken along the line 8-8 of FIG. 1;
FIG. 9 is an enlarged view of a portion of FIG. 1; and,
FIG. 10 is an enlarged view of a portion of FIG. 7.
The broken line showings of FIGS. 1-10 are environmental only and not part of the claimed design.
The dashed-dotted line showings of FIGS. 1, 7, 9, 10 illustrate a boundary between the claimed design and environmental features and form no part of the claimed design.