Track deprecated global drush constants

[joshsedl]

This is a follow-up issue of #486. As discussed there, we should replicate the AccessDeprecatedConstant rule to track known deprecated global drush constants.

See https://github.com/mglaman/phpstan-drupal/blob/main/src/Rules/Deprecations/AccessDeprecatedConstant.php for the model class.

[mglaman]

Do we have a list of the deprecated constants? Is it just the ones here? https://github.com/drush-ops/drush/blob/11.x/includes/bootstrap.inc

[joshsedl]

I'd say so! Couldn't find any others.

[mglaman]

With https://github.com/phpstan/phpstan/releases/tag/1.10.61 I think this "just works" now