Fix external object storage for sidekiq
Sidekiq isn't working with the new locations. This is actually a bug we missed from https://gitlab.com/charts/gitlab/merge_requests/393
But basically the init container is copying the information from the wrong location to the wrong location.
Sidekiq is using slightly different folder names than unicorn, so the init container that does
if [ -e /init-config/objectstorage ]; then
mkdir -p /init-secrets/objectstorage
cp /init-config/objectstorage/* /init-secrets/objectstorage/
fi
is using the wrong mount folders for sidekiq.