Try to fix the cache
https://stackoverflow.com/questions/76340763/what-gitlab-ci-configuration-will-reliably-cache-haskell-package-dependencies-bu suggested also caching dist-newstyle - so try that.
https://stackoverflow.com/questions/76340763/what-gitlab-ci-configuration-will-reliably-cache-haskell-package-dependencies-bu suggested also caching dist-newstyle - so try that.