Update to the latest version version of Analysis API containing the fix of KT-81874

[vmishenev]

After updating the Analysis API to 2.3.20-dev-1838, the tests became flaky with the following exception:

Exception in thread "AWT-EventQueue-0" java.lang.NullPointerException
	at com.intellij.openapi.fileEditor.FileDocumentManager.getInstance(FileDocumentManager.java:35)
	at com.intellij.openapi.fileTypes.BinaryFileTypeDecompilers.lambda$notifyDecompilerSetChange$1(BinaryFileTypeDecompilers.java:29)
	at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:311)
	at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:758)
	at java.awt.EventQueue.access$500(EventQueue.java:97)
	at java.awt.EventQueue$3.run(EventQueue.java:709)
	at java.awt.EventQueue$3.run(EventQueue.java:703)
	at java.security.AccessController.doPrivileged(Native Method)

Probably https://youtrack.jetbrains.com/issue/KT-81874/NPE-related-to-data-race-during-Application-disposal will fix it.