nodejs20 retired in rawhide

[Jan Stanek]

Hello list!
Following the upstream support reaching EOL support [1], I have
retired the nodejs20 package in rawhide. The last available version is
20.20.2, and you are encouraged to migrate to nodejs22 or nodejs24,
which upstream still supports.

[1]: https://nodejs.org/en/about/previous-releases

Please note that we currently do not plan to obsolete the package (via
the fedora-obsolete-packages [2] rpm), so it should remain installable
(as should previous versions, as far as I can tell). However, this is
open to discussion. If you feel we should be more proactive in
preventing installations of EOL versions, please let us know.

[2]: https://src.fedoraproject.org/rpms/fedora-obsolete-packages

Best regards!