Roll out stable 42.20250818.3.0, testing 42.20250901.2.0, next 42.20250901.1.0

[coreosbot-releng]

Requested by @marmijo via GitHub workflow (source).

[github-actions]

next
    version: 42.20250901.1.0 (latest)
    start: 2025-09-04 14:00:00+00:00 UTC (in 10:06:07)
           2025-09-04 16:00:00+02:00 Germany/France/Poland
           2025-09-04 11:00:00-03:00 Brazil
           2025-09-04 08:00:00-06:00 Colorado
           2025-09-04 15:00:00+01:00 Ireland
           2025-09-04 10:00:00-04:00 Raleigh/New York/Toronto
           2025-09-04 07:00:00-07:00 Vancouver
    duration: 2880m (48.0h)
stable
    version: 42.20250818.3.0 (latest)
    start: 2025-09-04 14:00:00+00:00 UTC (in 10:06:07)
           2025-09-04 16:00:00+02:00 Germany/France/Poland
           2025-09-04 11:00:00-03:00 Brazil
           2025-09-04 08:00:00-06:00 Colorado
           2025-09-04 15:00:00+01:00 Ireland
           2025-09-04 10:00:00-04:00 Raleigh/New York/Toronto
           2025-09-04 07:00:00-07:00 Vancouver
    duration: 2880m (48.0h)
testing
    version: 42.20250901.2.0 (latest)
    start: 2025-09-04 14:00:00+00:00 UTC (in 10:06:07)
           2025-09-04 16:00:00+02:00 Germany/France/Poland
           2025-09-04 11:00:00-03:00 Brazil
           2025-09-04 08:00:00-06:00 Colorado
           2025-09-04 15:00:00+01:00 Ireland
           2025-09-04 10:00:00-04:00 Raleigh/New York/Toronto
           2025-09-04 07:00:00-07:00 Vancouver
    duration: 2880m (48.0h)

[marmijo]

check stream diffs CI is failing because of the addition of the aws region ap-southeast-6, which is expected.
The region was added in: https://pagure.io/fedora-infrastructure/issue/12753

[marmijo]

LGTM