The ornamental design for a publiclightingfixture, as shown and described.
Public lighting fixture
1.1 is a front perspective view showing of a public lighting fixture showing our new design;
1.2 is a front elevational view thereof;
1.3 is a rear elevational view thereof;
1.4 is a left side elevational view thereof;
1.5 is a right side elevational view thereof;
1.6 is a bottom plan view thereof;
1.7 is a top plan view thereof.
The dash-dot-dash broken lines shown represent the bounds of the claim and forms no part thereof and the dashed broken lines shown therein illustrate portions of the luminaire that form no part of the claimed design.