Revert "ci: use a custom `checkout` step to avoid cloning the full repository"
Revert "ci: use a custom `checkout` step to avoid cloning the full repository"

This reverts commit c0cf960a

Sadly, the custom checkout steps wasn't working on fork.

kadirahq/react-storybook,storybooks/react-storybook,storybooks/storybook,storybooks/storybook,storybooks/react-storybook,storybooks/storybook,storybooks/storybook,storybooks/react-storybook,kadirahq/react-storybook,storybooks/storybook,storybooks/react-storybook,storybooks/storybook,storybooks/storybook