Update daskhub.yaml with latest openscapes

Since we seem to be updating the Openscape image quite frequently for use in the GlobalCoast/ProtoCoast project, perhaps it would be good to switch to the "latest" tag so I don't have to constantly keep raising PRs here. 

But if there is a policy of having a specific tag, I can change the PR to request the tag: "92bb0eb"

Author: rsignell

providers/kubernetes/daskhub.yaml

@@ -226,9 +226,9 @@ jupyterhub:
                 image: "{value}"
             choices:
                openscapes:
-                 display_name: "docker.io/openscapes/python:a1ff0c5"
+                 display_name: "docker.io/openscapes/python:latest"
                  kubespawner_override:
-                   image: docker.io/openscapes/python:a1ff0c5
+                   image: docker.io/openscapes/python:latest
                pangeo:
                  display_name: "quay.io/pangeo/pangeo-notebook:2025.01.24"
                  kubespawner_override: