sweep: allow updating all sweep parameters

This is a preparation for adding additional parameters besides the fee
preference.

sweep/sweeper_test.go

@@ -1178,7 +1178,9 @@ func TestBumpFeeRBF(t *testing.T) {
 
 	// We'll first try to bump the fee of an output currently unknown to the
 	// UtxoSweeper. Doing so should result in a lnwallet.ErrNotMine error.
-	bumpResult, err := ctx.sweeper.BumpFee(wire.OutPoint{}, lowFeePref)
+	_, err := ctx.sweeper.UpdateParams(
+		wire.OutPoint{}, Params{Fee: lowFeePref},
+	)
 	if err != lnwallet.ErrNotMine {
 		t.Fatalf("expected error lnwallet.ErrNotMine, got \"%v\"", err)
 	}
@@ -1206,12 +1208,14 @@ func TestBumpFeeRBF(t *testing.T) {
 	ctx.estimator.blocksToFee[highFeePref.ConfTarget] = highFeeRate
 
 	// We should expect to see an error if a fee preference isn't provided.
-	_, err = ctx.sweeper.BumpFee(*input.OutPoint(), FeePreference{})
+	_, err = ctx.sweeper.UpdateParams(*input.OutPoint(), Params{})
 	if err != ErrNoFeePreference {
 		t.Fatalf("expected ErrNoFeePreference, got %v", err)
 	}
 
-	bumpResult, err = ctx.sweeper.BumpFee(*input.OutPoint(), highFeePref)
+	bumpResult, err := ctx.sweeper.UpdateParams(
+		*input.OutPoint(), Params{Fee: highFeePref},
+	)
 	if err != nil {
 		t.Fatalf("unable to bump input's fee: %v", err)
 	}