Tests fail: Wanted but not invoked: geoJsonSource.setGeoJson

[louwers]

After merging #12, the tests fail: https://github.com/maplibre/maplibre-plugins-android/actions/runs/4255578822/jobs/7403370903

com.mapbox.mapboxsdk.plugins.annotation.FillManagerTest > testInitialization FAILED
    Wanted but not invoked:
    geoJsonSource.setGeoJson(
        <any com.mapbox.geojson.FeatureCollection>
    );
    -> at com.mapbox.mapboxsdk.style.sources.GeoJsonSource.setGeoJson(GeoJsonSource.java:291)
    Actually, there were zero interactions with this mock.
        at com.mapbox.mapboxsdk.style.sources.GeoJsonSource.setGeoJson(GeoJsonSource.java:291)
        at com.mapbox.mapboxsdk.plugins.annotation.FillManagerTest.testInitialization(FillManagerTest.java:68)

We should set up CI for pull requests so that we avoid this in the future.

[JonasVautherin]

Was solved in #35 by removing the tests. Would be nice to actually fix them, but that's more involved following #12.