update version to 6.0.2

Author: rmbinder

docs/documentation-de.docx

@@ -3,7 +3,7 @@
  ***********************************************************************************************
  * Mitgliedsbeitrag / Membership fee
  *
- * Version 6.0.1
+ * Version 6.0.2
  *
  * This plugin calculates membership fees based on role assignments.
  *

docs/documentation-de.pdf

@@ -10,5 +10,5 @@
  ***********************************************************************************************
  */
 
-$plugin_version = '6.0.2 Beta 1';
-$plugin_stand = '12.01.2026';
+$plugin_version = '6.0.2';
+$plugin_stand = '15.03.2026';