Merge branch 'revert-a59b7cee' into 'master'

Revert "Merge branch '58927-jupyterhub-fails-to-install' into 'master'"

See merge request gitlab-org/gitlab-ce!26174

changelogs/unreleased/58927-jupyterhub-fails-to-install.yml

----
-title: Fixes jupyter installation randomly failing
-merge_request: 26126
-author:
-type: fixed

vendor/jupyter/values.yaml

@@ -23,7 +23,3 @@ ingress:
  annotations:
    kubernetes.io/ingress.class: "nginx"
    kubernetes.io/tls-acme: "true"
-
-prePuller:
-  hook:
-    enabled: false