I have a relay on 152.53.17.183 / 2a0a:4cc0:1:1333::beef which is listed as "German" in metrics.torproject.org, but actually it is in Austria
Was just a topic here recently: https://lists.torproject.org/pipermail/tor-relays/2024-January/021472.html
Ask geofeed from the provider and submit a bug report.
Your address is in netcups AS. We publish the geofeed here: https://opengeofeed.org/feed/as197540.html (CSV: https://opengeofeed.org/feed/as197540.csv)
There you can also see that your network is correctly labelled as an Austrian IP in the geofeed: 152.53.16.0/22
the geofeed is also always kept up to date as it is stored at RIPE: https://apps.db.ripe.net/db-web-ui/query?searchtext=152.53.17.183