pre-delete / post-delete hooks do not complete

[sean-mcgimpsey]

The pre-delete and post-delete tasks do not complete, as the service account px-hook is not created.

  Warning  FailedCreate  16s (x10 over 4m16s)  job-controller  Error creating: pods "px-hook-predelete-nodelabel-" is forbidden: error looking up service account kube-system/px-hook: serviceaccount "px-hook" not found

Just to confirm .Values.serviceAccount.hook.create is true, and im running helm v3.1.0

To reproduce:

• Install portworx charts
• Run uninstall with the following command(replacing release_name and namespace)
  helm uninstall _release_name_ -n _namespace_ --debug

[sean-mcgimpsey]

This is caused by the weight of pre-delete/post-delete jobs being -5, meaning they run before the service account is created.
To fix simply change the weight annotation to 10 for these jobs.