🇧🇪Belgium @ndesmedt

@hyperlinked

I've updated composer.json with your sugestion. Then I ran the command:
composer require drupal/commerce_checkout_order_fields:dev-3336589-drupal-10-support

But no luck, I have the following error:

[RuntimeException]
  Failed to execute git clone --mirror -- git@git.drupal.org:issue/commerce_checkout_order_fields-3336589.git C:/Users/did42/AppData/Local/Composer/vcs/git-git.drupal.org-issue-commerce-checkout-order-fields-
  3336589.git/

  Cloning into bare repository 'C:/Users/did42/AppData/Local/Composer/vcs/git-git.drupal.org-issue-commerce-checkout-order-fields-3336589.git'...
  Warning: Permanently added the ECDSA host key for IP address '44.230.112.158' to the list of known hosts.
  git@git.drupal.org: Permission denied (publickey).
  fatal: Could not read from remote repository.

  Please make sure you have the correct access rights
  and the repository exists.

I don't know how to solve this.