[Bug] Precision not set properly for IntervalDayToSecond literal

[lorenarosati]

When creating a literal of type IntervalDayToSecond with the NewLiteral() function, the final returned literal does not have the precision set to the correct precision.

This is because this should be taking the precision from val and setting it here, but it doesn't do that and the precision defaults to 0:

case *types.IntervalDayToSecond:
    return &ProtoLiteral{
        Value: v,
	Type: &types.IntervalDayType{
		Nullability: getNullability(nullable),
	},
    }, nil

While precision is optional for this type, if provided, it should still be set properly.