feat: <autocreate> in cron.xml quiqqer/package-cron#44

cron.xml

@@ -8,6 +8,11 @@
         <description>
             <locale group="quiqqer/payment-stripe" var="cron.processUnpaidInvoices.description"/>
         </description>
+
+        <autocreate>
+            <interval>0 * * * *</interval>
+            <active>1</active>
+        </autocreate>
     </cron>
 
 </crons>
\ No newline at end of file