VFS-1035 Add dnspython and dig to base image.
VFS-1035 Add dnspython and dig to base image.

lopiola/gui,onedata/web-client,onedata/oz-worker,onedata/op-worker,onedata/cluster-worker,onedata/op-worker,onedata/web-client,onedata/op-worker,onedata/cluster-worker,onedata/oz-worker,onedata/oz-worker