In #1260, we upgraded to the latest version of the GH checkout action (v4). This version appears to no longer fetch all branches by default, so we are getting an error when trying to switch to the gh-pages branch in order to build the website. This PR explicitly configures the checkout action to fetch all branches.
In #1260, we upgraded to the latest version of the GH checkout action (v4). This version appears to no longer fetch all branches by default, so we are getting an error when trying to switch to the gh-pages branch in order to build the website. This PR explicitly configures the checkout action to fetch all branches.