Fix red develop 4c2a3e692a0f

The merge lane found `develop` red at `4c2a3e692a0f2a83c08c3e1e8270cf3b373074bc` on its own: no queued PR merges until it is fixed. Failing (tests and gate stages): - `tests/test_virtual_nodes.py::test_a_regular_nodes_bootstrap_is_byte_identical_to_before_hosts_existed` - `api-unit-dc-test` The whole gate log: artifact `12069` on lane task 11233. Make `develop` pass its full gate again. Open a PR as usual: the merge lane merges a PR that fixes some of these and adds no failure even while `develop` is red.

Re-pinned the self-hosted bootstrap golden digests after Task 11113 added a wait on a held rpm lock (jaah_dnf_wait) to the dnf arm. The new digest matches the lane log's actual value. Quick gate green. PR #7322 is queued to the merge lane. Memory: none applied.