Compromise-dates plugin does not project singular possessive dates

[Fdawgs]

Node version: 20.14.0 Compromise version: 14.13.0 Compromise-dates version: 3.5.0

Using the compromise-dates plugin, singular possessive dates are not projected correctly.

Example:

'use strict'

/** @type {import('compromise').default} */
const nlp = require('compromise')
const nlpDates = require('compromise-dates')
nlp.plugin(nlpDates)

const context = {
  today: '2023-01-01',
}

// Singular possessive example
const doc1 = nlp("I'm leaving in a month's time")
const datesViews1 = doc1.dates(context)
const dateList1 = datesViews1.json()
console.log(dateList1[0]?.dates)
/**
Output:
{
  start: '2023-01-01T00:00:00.000Z',
  end: '2023-01-01T23:59:59.999Z',
  timezone: 'Europe/London',
  duration: { years: 0, months: 0, days: 1, hours: 0, minutes: 0 }
}

Expected:
{
  start: '2023-02-01T00:00:00.000Z',
  end: '2023-02-01T23:59:59.999Z',
  timezone: 'Europe/London',
  duration: { years: 0, months: 0, days: 1, hours: 0, minutes: 0 }
}
 */

// Plural possessive example (though it's incorrect grammar, it's a valid test case)
const doc2 = nlp("I'm leaving in a months' time")
const datesViews2 = doc2.dates(context)
const dateList2 = datesViews2.json()
console.log(dateList2[0]?.dates)
/**
Output:
{
  start: '2023-02-01T00:00:00.000Z',
  end: '2023-02-01T23:59:59.999Z',
  timezone: 'Europe/London',
  duration: { years: 0, months: 0, days: 1, hours: 0, minutes: 0 }
}
*/