Add geckodriver to factory process

[MikeMcC399]

• Supports the resolution of enhancement request issue Support testing with Firefox in air-gapped environment (Docker) #1348

What would you like

Add the ability to specify a version of the driver package mozilla/geckodriver from mozilla/geckodriver in the Cypress Docker factory build process.

Add install scripts for mozilla/geckodriver to the cypress/factory image so that the installation is compatible with use by the npm wrapper package geckodriver bundled in the Cypress binary (see https://github.com/cypress-io/cypress/blob/develop/packages/server/package.json) since [email protected].

Why is this needed

1. In support of Support testing with Firefox in air-gapped environment (Docker) #1348 , otherwise when attempting to test Firefox in an air-gapped environment, the test fails with:

   FetchError: request to https://raw.githubusercontent.com/mozilla/geckodriver/release/Cargo.toml failed, reason: getaddrinfo ENOTFOUND raw.githubusercontent.com

2. To ensure that Firefox testing uses a deterministic set of versions. Without the version specification of the mozilla/geckodriver, Firefox testing dynamically downloads the latest driver version, which may change over time and could therefore cause different test results.

Non-goal

This request would change only the cypress/factory image.

Changes to cypress/browsers and cypress/included to include geckodriver would be a separate request, with this one as prerequisite.

[MikeMcC399]

• PR feat: add geckodriver to factory process #1353 submitted to implement this suggestion