Open eCard

Open-Ecard 2.3.10
Cachy OS (Arch Linux)

Beim Start erzeugt die Update Funktion einen Core Dump:

```
open-ecard-app
pure virtual method called
terminate called without an active exception
Exception in thread "Update-Task" java.lang.IllegalArgumentException: Package type UNKNOWN not supported in update list.
at org.openecard.richclient.updater.VersionUpdateLoader.loadVersionUpdateList(VersionUpdateLoader.kt:102)
at org.openecard.richclient.updater.VersionUpdateChecker$Companion.loadCurrentVersionList(VersionUpdateChecker.kt:163)
at org.openecard.richclient.RichClient$UpdateTask.run(RichClient.kt:297)
at java.base/java.util.TimerThread.mainLoop(Unknown Source)
at java.base/java.util.TimerThread.run(Unknown Source)
Caused by: java.lang.NullPointerException: null cannot be cast to non-null type kotlin.String
at org.openecard.richclient.updater.VersionUpdateLoader.loadVersionUpdateList(VersionUpdateLoader.kt:74)
... 4 more

```