CFY-2700 updated requests version to the latest as part of the openstack clients versions update
CFY-2700 updated requests version to the latest as part of the openstack clients versions update

cloudify-cosmo/cloudify-system-tests,codilime/cloudify-system-tests,isaac-s/cloudify-system-tests,cloudify-cosmo/cloudify-system-tests,codilime/cloudify-system-tests,codilime/cloudify-system-tests,isaac-s/cloudify-system-tests,isaac-s/cloudify-system-tests