Adapt app to jackson 3

[holgerfriedrich]

Relates to openhab/openhab-core#5425.

[holgerfriedrich]

App resolves properly and starts up.

Though, still an issue with the marketplace visible on the console during runtime:

[INFO] [stdout] 11:02:00.142 [ERROR] [ity.CommunityMarketplaceAddonService] - bundle org.openhab.core.addon.marketplace:5.2.0.SNAPSHOT (121)[org.openhab.core.addon.marketplace.internal.community.CommunityMarketplaceAddonService(49)] : Error during instantiation of the implementation object
[INFO] [stdout] java.lang.reflect.InvocationTargetException
[INFO] [stdout]         at java.base/jdk.internal.reflect.DirectConstructorHandleAccessor.newInstance(DirectConstructorHandleAccessor.java:74)
[INFO] [stdout]         at java.base/java.lang.reflect.Constructor.newInstanceWithCaller(Constructor.java:502)
[INFO] [stdout]         at java.base/java.lang.reflect.Constructor.newInstance(Constructor.java:486)
[INFO] [stdout]         at org.apache.felix.scr.impl.inject.internal.ComponentConstructorImpl.newInstance(ComponentConstructorImpl.java:326)
[INFO] [stdout]         at org.apache.felix.scr.impl.manager.SingleComponentManager.createImplementationObject(SingleComponentManager.java:286)
[INFO] [stdout]         at org.apache.felix.scr.impl.manager.SingleComponentManager.createComponent(SingleComponentManager.java:115)
[INFO] [stdout]         at org.apache.felix.scr.impl.manager.SingleComponentManager.getService(SingleComponentManager.java:1002)
...

Maybe I need to try again with a clean install.