The ornamental design for a faucet, as shown and described.
FIG. 1 is a first perspective view of a faucet showing my new design;
FIG. 2 is a front view thereof;
FIG. 3 is a back view thereof;
FIG. 4 is a left side view thereof;
FIG. 5 is a right side view thereof;
FIG. 6 is a top view thereof;
FIG. 7 is a bottom view thereof; and,
FIG. 8 is an enlarged detail view of the encircled portion of FIG. 1.
The dash-dash broken lines are included for the purpose of illustrating portions of the article and form no part of the claimed design. The dot-dash broken lines in FIGS. 1 and 8 form no part of the claimed design and designate the region of claimed subject matter in FIG. 4 that is shown on an enlarged scale in FIG. 8.