Merge branch '3.0'

diff --cc wcfsetup/install/files/lib/acp/action/UserExportGdprAction.class.php
index b848f8ad6bd948474cfffdaa3e80980a90a34dc8,3b8babc5b282295dfc05dbbb177a95d8ad5c0313..d68487bb94dca10077572774f54549a24cb1dee8
--- 1/wcfsetup/install/files/lib/acp/action/UserExportGdprAction.class.php
--- 2/wcfsetup/install/files/lib/acp/action/UserExportGdprAction.class.php
+++ b/wcfsetup/install/files/lib/acp/action/UserExportGdprAction.class.php
@@@ -2,9 -2,9 +2,10 @@@
  namespace wcf\acp\action;
  use wcf\action\AbstractAction;
  use wcf\data\package\PackageCache;
 +use wcf\data\user\cover\photo\DefaultUserCoverPhoto;
  use wcf\data\user\group\UserGroup;
  use wcf\data\user\UserProfile;
+ use wcf\system\database\statement\PreparedStatement;
  use wcf\system\event\EventHandler;
  use wcf\system\exception\IllegalLinkException;
  use wcf\system\exception\PermissionDeniedException;