The page here says it is published but upon clicking on it the following error appear: 'Error loading provider: Error: No provider versions found" which can be seen here.
Looking at the GitHub repository the webhook was not made and reading the FAQ the answer is to resync the repository. However, since the page is blank with only the error message, there is no option to press the resync button. The artifacts were created under the release and signed with the GPG key.
“I will delete this provider for you, and then you can publish it again. You can only publish the provider if you have sufficient GitHub permissions to create webhooks on the repository.”