I claim the ornamental design for a faucet, as shown and described.
FIG. 1 is a perspective view of a faucet showing my new design;
FIG. 2 is back perspective view of the faucet as shown in FIG. 1;
FIG. 3 is a left-side view of the faucet as shown in FIG. 1;
FIG. 4 is a right-side view of the faucet as shown in FIG. 1;
FIG. 5 is a front-side view of the faucet as shown in FIG. 1;
FIG. 6 is a back-side view of the faucet as shown in FIG. 1;
FIG. 7 is a top-side view of the faucet as shown in FIG. 1; and,
FIG. 8 is a bottom-side view of the faucet as shown in FIG. 1.
The broken lines are only for environmental purposes and form no part of the claimed design. No particular colour scheme forms part of the claimed design.