Remove dnf5 from Rawhide job

[jan-cerny]

Today, the workaround in the GitHub Actions Workflow definition for Rawhide started to cause a trouble. For example, in PR #11121 the build on Rawhide failed with this message:

Run dnf5 install -y dnf
/__w/_temp/93cd66dc-fcda-4ce6-95b8-25f457532355.sh: line 1: dnf5: command not found
Error: Process completed with exit code 127.

[openshift-ci]

Skipping CI for Draft Pull Request.
If you want CI signal for your change, please convert it to an actual PR.
You can still manually trigger a test run with /test all

[github-actions]

Start a new ephemeral environment with changes proposed in this pull request:

Fedora Environment

Oracle Linux 8 Environment

[codeclimate]

Code Climate has analyzed commit 822fbf8 and detected 0 issues on this pull request.

The test coverage on the diff in this pull request is 100.0% (50% is the threshold).

This pull request will bring the total coverage in the repository to 53.8% (0.0% change).

View more on Code Climate.