ZENKO-2277 installing curl and gpg due to parent image upgrade
ZENKO-2277 installing curl and gpg due to parent image upgrade

as the image node:10-slim received an update and removed the commands
curl and gpg, we lost the ability to build cloudserver.
We're now installing them specifically.

scality/S3,scality/S3,scality/S3,scality/S3,scality/S3,scality/S3,scality/S3,scality/S3