[create:vocabularies] Add missing arguments to empty method call. Resolves #3271.

[brayfe]

When using drupal console to create Vocabularies or Terms, the creation of the "description" field was missing an argument in the getRandom()->sentences() call. This caused the following error:

ArgumentCountError: Too few arguments to function Drupal\Component\Utility\Random::sentences(),
0 passed in /vendor/drupal/console/src/Utils/Create/TermData.php on line 69 and at least 1 
expected in Drupal\Component\Utility\Random->sentences() (line 192 of 
/core/lib/Drupal/Component/Utility/Random.php).

Solution was to supply the value provided by the user ($nameWords) to the function.
Test using:
drupal create:vocabularies --limit=5 --name-words=5 or
drupal create:terms --limit=5 --name-words=5 and selecting a vocab to use.

[jmolivas]

@brayfe Thanks for your contribution, your PR was merged. This will be included on the next release.