[TASK] Prepare new version 5.2.2

Signed-off-by: Erik Sommer <Erik.Sommer@slub-dresden.de>

Author: Erikmitk

ext_emconf.php

@@ -27,7 +27,7 @@
     'uploadfolder'     => '1',
     'createDirs'       => 'uploads/tx_dpf',
     'clearCacheOnLoad' => 0,
-    'version'          => '5.2.1',
+    'version'          => '5.2.2',
     'constraints'      => array(
         'depends'   => array(
             'typo3' => '9.5.0-9.5.99',