Add default pip compatibility for CentOS 7/8 (rh-)python38 (#1017)
Add default pip compatibility for CentOS 7/8 (rh-)python38 (#1017)

* Add default pip compatibility for CentOS 8 python38

* Add default pip compatibility for CentOS 7 rh-python38
pypa/manylinux,manylinux/manylinux,pypa/manylinux,manylinux/manylinux,pypa/manylinux