[ST]: Consider getting data from "Atlas der Schulstandorte"

[k-nut]

The state of Sachsen-Anhalt also publishes their school data as an interactive map (https://www.stala.sachsen-anhalt.de/grafiken/allgemeinbildende-schulen). The data seems to be made available by an ArcGIS server and can be accessed at https://services-eu1.arcgis.com/3jNCHSftk0N4t7dd/arcgis/rest/services/Schulenstandorte_EPSG25832_2024_25_Sicht/FeatureServer/44/query?where=1%3D1&outFields=*&f=json. We should consider if we want to switch to this data source to also get the geo locations.