The ornamental design for a packagingcontainer, as shown and described.
FIG. 1 is an upper perspective view of a packaging container according to our new design;
FIG. 2 is a second upper perspective view of FIG. 1 shown with a lid with an attached rectangular spoon for illustrative purposes only;
FIG. 3 is a third upper perspective view of FIG. 1 shown with a lid partially peeled away as well as another container with a lid with an attached rectangular spoon for illustrative purposes only;
FIG. 4 is a fourth upper perspective view of FIG. 1 shown with another container arranged in another configuration for illustrative purposes only;
FIG. 5 is a front elevational view of FIG. 1;
FIG. 6 is a rear elevational view of FIG. 1;
FIG. 7 is a left elevational view of FIG. 1;
FIG. 8 is a right elevational view of FIG. 1;
FIG. 9 is a top plan view of FIG. 1; and,
FIG. 10 is a bottom plan view of FIG. 1.
In FIGS. 2-4, broken lines are used to disclose environment structures related to the claimed design for illustrative purposes and form no part of the claimed design.