Add optional properties returned from Cypress NPM module API on failure

[bahmutov]

If Cypress NPM module fails to find any specs it resolves with an object that is not typed right now

// https://on.cypress.io/module-api
const cypress = require('cypress')
const results = await cypress.run()
// seems Cypress TS definition does not have "failures" and "message" properties
// @ts-ignore
if (results.failures) {
  // Cypress failed without even running the tests
  console.error('Problem running Cypress')
  // @ts-ignore
  console.error(results.message)
  // @ts-ignore
  process.exit(results.failures)
}

// results.totalFailed gives total number of failed tests
if (results.totalFailed) {
  process.exit(results.totalFailed)
}

[cypress-bot]

The code for this is done in cypress-io/cypress#5337, but has yet to be released.
We'll update this issue and reference the changelog when it's released.

[cypress-bot]

Released in 3.5.0.