Risk Factor: low
Title: Some enabled RPM repositories are unknown to Leapp
Summary: The following repositories with Red Hat-signed packages are unknown to Leapp:
- satellite-maintenance-6.16-for-rhel-8-x86_64-rpms
- satellite-6.16-for-rhel-8-x86_64-rpms
And the following packages installed from those repositories may not be upgraded:
- rubygem-bcrypt
- rubygem-builder
- rubygem-pg
- rubygem-get_process_mem
- rubygem-smart_proxy_discovery
- rubygem-pulp_certguard_client
- rubygem-pulp_ostree_client
- rubygem-pulp_rpm_client
...
- rubygem-thor
- rubygem-tilt
- satellite-installer
- python3.11-asyncio-throttle
- python3.11-cryptography
...
- rubygem-foreman_theme_satellite
- satellite
- python3.11-packaging
...
- rubygem-foreman_maintain
Remediation: [hint] You can file a request to add this repository to the scope of in-place upgrades by filing a support ticket
Key: 8e89e20c645cea600b240156071d81c64daab7ad 

I can see that you are registered properly, and also that you have the necessary repositories already in place, with no issues.
---
$ cat sos_commands/dnf/dnf_-C_repolist_--verbose
Loaded plugins: builddep, changelog, config-manager, copr, debug, debuginfo-install, download, fapolicyd, generate_completion_cache, groups-manager, needs-restarting, playground, product-id, repoclosure, repodiff, repograph, repomanage, reposync, subscription-manager, system-upgrade, uploadprofile, versionlock
Updating Subscription Management repositories.
DNF version: 4.7.0
cachedir: /var/cache/dnf
subscription-manager plugin disabled 3 system repositories with respect of configuration in /etc/dnf/plugins/subscription-manager.conf
Last metadata expiration check: 0:02:09 ago on Mon Jun 16 08:54:16 2025.
Repo-id            : rhel-8-for-x86_64-appstream-rpms
Repo-name          : Red Hat Enterprise Linux 8 for x86_64 - AppStream (RPMs)
Repo-revision      : 1750079239
Repo-updated       : Mon Jun 16 08:07:19 2025
Repo-pkgs          : 42202
Repo-available-pkgs: 36424
Repo-size          : 146 G
Repo-baseurl       : https://cdn.redhat.com/content/dist/rhel8/8/x86_64/appstream/os
Repo-expire        : 86400 second(s) (last: Mon Jun 16 08:54:14 2025)
Repo-filename      : /etc/yum.repos.d/redhat.repo

Repo-id            : rhel-8-for-x86_64-baseos-rpms
Repo-name          : Red Hat Enterprise Linux 8 for x86_64 - BaseOS (RPMs)
Repo-revision      : 1750072171
Repo-updated       : Mon Jun 16 06:09:31 2025
Repo-pkgs          : 20537
Repo-available-pkgs: 20480
Repo-size          : 46 G
Repo-baseurl       : https://cdn.redhat.com/content/dist/rhel8/8/x86_64/baseos/os
Repo-expire        : 86400 second(s) (last: Mon Jun 16 08:54:15 2025)
Repo-filename      : /etc/yum.repos.d/redhat.repo

Repo-id            : satellite-6.16-for-rhel-8-x86_64-rpms
Repo-name          : Red Hat Satellite 6.16 for RHEL 8 x86_64 (RPMs)
Repo-revision      : 1747233295
Repo-updated       : Wed May 14 09:34:55 2025
Repo-pkgs          : 673
Repo-available-pkgs: 673
Repo-size          : 1.9 G
Repo-baseurl       : https://cdn.redhat.com/content/dist/layered/rhel8/x86_64/satellite/6.16/os
Repo-expire        : 86400 second(s) (last: Mon Jun 16 08:54:16 2025)
Repo-filename      : /etc/yum.repos.d/redhat.repo

Repo-id            : satellite-maintenance-6.16-for-rhel-8-x86_64-rpms
Repo-name          : Red Hat Satellite Maintenance 6.16 for RHEL 8 x86_64 (RPMs)
Repo-revision      : 1747233291
Repo-updated       : Wed May 14 09:34:51 2025
Repo-pkgs          : 9
Repo-available-pkgs: 9
Repo-size          : 953 k
Repo-baseurl       : https://cdn.redhat.com/content/dist/layered/rhel8/x86_64/sat-maintenance/6.16/os
Repo-expire        : 86400 second(s) (last: Mon Jun 16 08:54:01 2025)
Repo-filename      : /etc/yum.repos.d/redhat.repo
Total packages: 63421
---

Just to keep on track, specifically the issue you are facing
---
Risk Factor: low
Title: Some enabled RPM repositories are unknown to Leapp
Summary: The following repositories with Red Hat-signed packages are unknown to Leapp:
- satellite-maintenance-6.16-for-rhel-8-x86_64-rpms
- satellite-6.16-for-rhel-8-x86_64-rpms
And the following packages installed from those repositories may not be upgraded:
- rubygem-bcrypt
- rubygem-builder
- rubygem-pg
- rubygem-get_process_mem
- rubygem-smart_proxy_discovery
- rubygem-pulp_certguard_client
- rubygem-pulp_ostree_client
- rubygem-pulp_rpm_client
...
- rubygem-thor
- rubygem-tilt
- satellite-installer
- python3.11-asyncio-throttle
- python3.11-cryptography
...
- rubygem-foreman_theme_satellite
- satellite
- python3.11-packaging
...
- rubygem-foreman_maintain
Remediation: [hint] You can file a request to add this repository to the scope of in-place upgrades by filing a support ticket
Key: 8e89e20c645cea600b240156071d81c64daab7ad
---