dargullin/icheck could not be downloaded

I did

composer require --dev drupal/core-dev:8.9.20 --update-with-all-dependencies

Composer starts installing stuff but then errors

[Composer\Downloader\TransportException]                                                                                                                 
  The "https://github.com/dargullin/icheck/archive/1.0.2.zip" file could not be downloaded, got redirect without Location (HTTP/1.1 300 Multiple Choices)

I get the same error from

composer require drupal/upgrade_status

Is there a way out of that?