CI: runc cgroup error msg flake

[Luap99]

[+0588s] not ok 561 copy-file-relative-context-dir
[+0588s] # (from function `expect_line_count' in file ./helpers.bash, line 591,
[+0588s] #  in test file ./copy.bats, line 597)
[+0588s] #   `expect_line_count 1' failed
[+0588s] # /var/tmp/go/src/github.com/containers/buildah/tests /var/tmp/go/src/github.com/containers/buildah/tests
[+0588s] # # [checking for: docker.io/library/busybox]
[+0588s] # # [restoring from cache: /tmp/bats-run-lPAMEB/suite/buildah-image-cache / docker.io/library/busybox]
[+0588s] # Getting image source signatures
[+0588s] # Copying blob sha256:9758c28807f21c13d05c704821fdd56c0b9574912f9b916c65e1df3e6b8bc572
[+0588s] # Copying config sha256:f0b02e9d092d905d0d87a8455a1ae3e9bb47b4aa3dc125125ca5cd10d6441c9f
[+0588s] # Writing manifest to image destination
[+0588s] # # /var/tmp/go/src/github.com/containers/buildah/tests/./../bin/buildah from --quiet --signature-policy /var/tmp/go/src/github.com/containers/buildah/tests/./policy.json busybox
[+0588s] # busybox-working-container
[+0588s] # # /var/tmp/go/src/github.com/containers/buildah/tests/./../bin/buildah copy --contextdir /tmp/buildah_tests.ishht1/context busybox-working-container test_file /opt/
[+0588s] # 42145a076d5e72262bea80733dac7785067a42f76c7b45a5a047f70e4403440f
[+0588s] # # /var/tmp/go/src/github.com/containers/buildah/tests/./../bin/buildah run busybox-working-container ls -1 /opt/
[+0588s] # test_file
[+0588s] # time="2025-06-04T04:16:33-05:00" level=error msg="seek /sys/fs/cgroup/system.slice/runc-buildah-buildah4055347767.scope/cgroup.freeze: no such device"
[+0588s] # #/vvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvv
[+0588s] # #| FAIL: buildah run busybox-working-container ls -1 /opt/
[+0588s] # #| Expected 1 lines of output, got 2
[+0588s] # #| Output was:
[+0588s] # #| >test_file
[+0588s] # #| >time="2025-06-04T04:16:33-05:00" level=error msg="seek /sys/fs/cgroup/system.slice/runc-buildah-buildah4055347767.scope/cgroup.freeze: no such device"
[+0588s] # #\^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

https://api.cirrus-ci.com/v1/task/5992802590392320/logs/integration_test.log

[nalind]

That one's cropping up frequently.