Remove duplication in secret-rotation call
Remove duplication in secret-rotation call

There was a lot of duplication in the list of secrets to preserve being
passed to this script. I've run this list through `sort | uniq` to
remove these.

alphagov/paas-cf,alphagov/paas-cf,alphagov/paas-cf,alphagov/paas-cf,alphagov/paas-cf,alphagov/paas-cf,alphagov/paas-cf,alphagov/paas-cf