RHUI-3 has been EOL on RHEL-8 and it is no longer being updated and we
do not take new snapshots of it. Use RHUI-4 instead. More info in [1].
It turns out, that the previously used RHUI-3 snapshot was missing
amazon-libdnf-plugin package, wich is required by the RHUI client.
As a result, the "weldr dot-notation" test has been failing in the GA
pipeline on RHEL-8. We do not run the test case on RHEL-8 in PRs of
`main` pipeline, because we test only on nightly composes and there are
no new releases being developed for RHEL-8. Therefore this was
manifesting only in the GA pipeline runs.
This change should fix the failures in the GA pipeline.
[1] https://github.com/osbuild/rpmrepo/pull/119
Signed-off-by: Tomáš Hozza <thozza@redhat.com>
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