Access does not check for admin permission

Problem/Motivation

In \Drupal\group_action\Plugin\Action\GroupActionBase::access there are permission checks for any and own. But if both return false, the user could still have the admin permission for that permission provider inside the group. This is not about the global admin role outside the group, it is a special admin permission for the current type of relationships.

Proposed resolution

Add the check for the admin permission.