Bump requests to 2.19.1-4 in Rocky+
Bump requests to 2.19.1-4 in Rocky+

Introduce min version requirement to chardet 3.0.2
so it fixes upgrade path

Change-Id: Ic1d0a00b117c8a6cd1c756961be45f1033346061

redhat-openstack/rdoinfo,javierpena/rdoinfo