Due to the bug in Ansible [1] it does not resolve requirement of /usr/bin/curl
properly, always trying to install `curl-minimal`, which would fail on systems with
already installed `curl`.
Since `curl` presence is essential for DNF, we should be able to skip installation
of curl to EL systems, as they are all shipped with it as of today.
[1] https://github.com/ansible/ansible/issues/82461
Closes-Bug: #2046172
Change-Id: I0f1bd3aa3dbce93c42fdb9399948c41edab2369d
1584983367