Update Drush 8 to latest version 8.3.2

[gitressa]

• My code includes the latest code from the master branch
• My code includes an update to the CHANGELOG
• My code includes a functional test if applicable
• My code includes a unit test if applicable
• My code includes documentation updates if applicable.
• My code passes relevant CI status checks
• I have pinged a project committer when I think my code is ready for prime time.

On the Using Drush page it says:

By default our Drupal 8 recipe will globally install the latest version of Drush 8

Current Drush version 8.2.3 in Lando was released Apr 3, 2019, and the latest version 8.3.2 was released Nov 27, 2019, so we should probably update it to the latest release. I have attempted to find all instances with grep -iR "8\.2" | grep -i drush:

• examples/backdrop/README.md
• examples/drupal6/README.md
• examples/drupal7/README.md
• examples/drupal8/README.md
• plugins/lando-pantheon/lib/utils.js
• plugins/lando-recipes/recipes/backdrop/builder.js
• plugins/lando-recipes/types/drupaly/builder.js

[smutlord]

Awesome @gitressa! Thanks! Been meaning to do this.

[smutlord]

@gitressa merged into #2112

[gitressa]

Thanks @smutlord, and for working on Lando :-)