Problem deploying app via github actions

Hi,

I'm trying to deploy an app to shinyapps.io via github actions and I'm recieving the following error:

2023-10-16T14:44:42.2962487Z ## End Task Log ################################################################
2023-10-16T14:44:42.2965198Z Processing triggers for libc-bin (2.31-0ubuntu9.9) ... Error: Unhandled Exception: Child Task 1346108558 failed: Error building image: Error fetching sessioninfo (1.2.2) source. Error downloading package source: Unsupported url scheme: CRAN/src/contrib/sessioninfo_1.2.2.tar.gz
2023-10-16T14:44:42.2967206Z Execution halted
2023-10-16T14:44:42.3131559Z ##[error]Process completed with exit code 1.

The deployment worked on friday, but rerunning the exact same deployment now produces this error. Has anyone come across it or can suggest a solution?