The parent issue RHELC-676 has the label that triggered autocreation of this subtask to track the relative story point estimation for the integration test part of the issue.

The parent issue description at the time of creation of this issue was:
The work has been already started under https://github.com/oamg/convert2rhel/pull/267.

Acceptance criteria:

• The stream yum variable is passed to dnf after we remove centos-stream-repos package, likely through the `--setopt=stream=8-stream` dnf option
• The system version detection is updated to read CentOS Stream 8 /etc/system-release
• The systeminfo.id has the value "stream" when on CentOS Stream 8
• A new config file, similar to the one for CentOS Linux 8, is created for CentOS Stream 8
• The releasever dnf variable mapping is updated to allow CentOS Stream 8
• Enable automation of running integration tests on CentOS Stream 8 using Packit/Testing Farm
  • https://github.com/packit/packit-service/pull/1599

Additional information:

# cat /etc/yum.repos.d/CentOS-Stream-BaseOS.repo 
[baseos]
name=CentOS Stream $releasever - BaseOS
mirrorlist=http://mirrorlist.centos.org/?release=$stream&arch=$basearch&repo=BaseOS&infra=$infra
# python3 -c 'import dnf, pprint; db = dnf.Base(); pprint.pprint(db.conf.releasever)'
'8'
# cat /etc/yum/vars/stream 
8-stream
# rpm -qf /etc/yum/vars/stream 
centos-stream-repos-8-6.el8.noarch