https://docs.github.com/en/rest/git/trees
https://docs.github.com/en/rest/git/trees#get-a-tree

2020
https://stackoverflow.com/questions/25022016/get-all-file-names-from-a-github-repo-through-the-github-api

samples
curl \
    -H "Authorization: token tttttttttttttttttttttttttttttttttttttttt" \
    -H "Accept: application/vnd.github.v3+json" \
    https://api.github.com/repos/<org-owner>/<repo>/git/trees/<80-chars-tree-hash>