Upgrade to d11

Oh, with CKEditor4 gone this is much harder than I thought

Is this module still relevant? I find that the CKEditor5 inline code button provides this functionality.

I have upgrade the drupal version and also created the patch.

Upgrading to D11 won't be needed because this option is available by default in CKEditor 5.

You can enable by visiting /admin/config/content/formats and selecting to configure your desired Text format.