Put object storage in same DC as the server

When I recreated the server, I had to do so in nuremberg
rather than falkenstein because their nuremberg server was full.
But the object storage for the images remained in the old location.

I've created a new object storage bucket and moved that!

Author: yuvipanda

config/hetzner-2i2c.yaml

@@ -9,8 +9,8 @@ registry:
       # filesystem:
       #   rootdirectory: /var/lib/registry
       s3:
-        regionendpoint: https://fsn1.your-objectstorage.com
-        bucket: mybinder-2i2c-registry-hetzner
+        regionendpoint: https://nbg1.your-objectstorage.com
+        bucket: mybinder-2i2c-registry
         region: does-not-matter
   storage:
     filesystem: