adding multiple files in a single commit using github api

Currently we push each file separately like in this code snippet, but when I explored how to add multiple files, the implementation seems a bit too complex for our needs.

https://siddharthav.medium.com/push-multiple-files-under-a-single-commit-through-github-api-f1a5b0b283ae

https://github.blog/changelog/2021-09-13-a-simpler-api-for-authoring-commits/

"simpler" just means fewer number of calls.