The ornamental design for a faucetassembly, as shown and described.
FIG. 1 is a front perspective view of a faucet assembly showing my new design;
FIG. 2 is a front elevational view thereof;
FIG. 3 is a rear elevational view thereof;
FIG. 4 is a right side elevational view thereof;
FIG. 5 is a left side elevational view thereof; and,
FIG. 6 is a top plan view thereof.
The broken lines shown in the spout in FIG. 2 are included for the purpose of illustrating a portion of the faucet assembly that forms no part of the claimed design.