Force remove package python3-docutils to avoid conflicts

setup/dom0.sh

 sudo qubes-dom0-update --enablerepo=qubes-templates-community-testing qubes-template-centos-8-minimal
 qvm-clone centos-8-minimal ibox
+# 2021-08-18: There is currently a conflict between python3-docutils and python38-docutils. If we keep python3-docutils ts not possible to update centos-8 with the qubes-agents 
+qvm-run -p -u root ibox 'rpm -e --nodeps python3-docutils'
 qvm-run -p -u root ibox 'dnf install qubes-core-agent-networking qubes-core-agent-passwordless-root'
 qvm-shutdown ibox
 qvm-create --label gray --template ibox ibox-base