Docker CI image now inherits from gms_base_centos:0.2.

tests/CI_docker/context/py_tools_ds_ci.docker

-FROM gms_base_centos:latest
+FROM gms_base_centos:0.2
 RUN yum update -y && \
     yum install -y patch  # patch: conda skeleton will not work without: # https://stackoverflow.com/questions/40392161/building-conda-skeleton-from-pypi-package-throws-error