The ornamental design for a packagingcontainer, as shown and described.
FIG. 1 is a front top perspective view of a packaging container showing my new design.
FIG. 2 is a rear perspective view thereof;
FIG. 3 is a front elevational view thereof;
FIG. 4 is a rear elevational view thereof;
FIG. 5 is a right side elevational view thereof; the left side elevational view being a mirror image thereof;
FIG. 6 is a top plan view thereof,
FIG. 7 is a bottom plan view thereof; and,
FIG. 8 is a front perspective view in an open position.
The broken lines in FIGS. 1 to 5, and FIGS. 7 and 8 are included for the purpose of illustrating portions of the article and form no part of the claimed design. No claim is made to portions that are not shown.