The ornamental design for a faucet, as shown and described.
FIG. 1 is a front, right perspective view of a faucet of the new design;
FIG. 2 is a front elevational view of the faucet of FIG. 1;
FIG. 3 is a rear elevational view of the faucet of FIG. 1;
FIG. 4 is a left side elevational view of the faucet of FIG. 1, the right side elevational view being a mirror image thereof;
FIG. 5 is a top plan view of the faucet of FIG. 1;
FIG. 6 is a bottom plan view of the faucet of FIG. 1;
FIG. 7 is a cross-sectional view of the faucet of FIG. 1, taken along the line 7-7 in FIG. 4, showing the contour of a portion of the exterior surface of the faucet; and,
FIG. 8 is a cross-sectional view of the faucet of FIG. 1, taken along the line 8-8 in FIG. 4, showing the contour of another portion of the exterior surface of the faucet.
The portions of the Figures shown in broken lines are not part of the claimed design.