The ornamental design for a faucet, as shown and described.
FIG. 1 is a front perspective view of a faucet according to the present invention.
FIG. 2 is a front view of the faucet of FIG. 1.
FIG. 3 is a rear view of the faucet of FIG. 1.
FIG. 4 is a left side view of the faucet of FIG. 1.
FIG. 5 is a right side view of the faucet of FIG. 1.
FIG. 6 is a top view of the faucet of FIG. 1; and,
FIG. 7 is a bottom view of the faucet of FIG. 1.
The dashed lines illustrate environment that does not form a part of the present invention, and no claim is made to the material illustrated with dashed lines. The appearance of any portion of the article between the broken away symbols forms no part of the claimed design.