Merge pull request #3428 from jupyterhub/revert-3413-downgrade-dind

Revert "Downgrade Docker dind from 28.3.3-dind to 27.5.1-dind"

Author: rgaiacs

mybinder/values.yaml

@@ -352,10 +352,6 @@ binderhub:
   imageBuilderType: dind
   dind:
     daemonset:
-      image:
-        # Investigating https://github.com/jupyterhub/mybinder.org-deploy/issues/3387#issuecomment-3239287733
-        # Downgrade dind, reverts https://github.com/jupyterhub/binderhub/pull/1937
-        tag: 27.5.1-dind
       extraArgs:
         # Allow for concurrent pushes so pushes are faster
         - --max-concurrent-uploads=32