Replace github api calls with a python package

[banginji]

A possible package is PyGithub

[banginji]

Evaluate get_file to see if its been implemented efficiently

[colindean]

Its github.Repository.get_contents(), basically the same? Returns a github.ContentFile.ContentFile which then does a base64 decode in decoded_content().

I think it'd be nice to reduce our surface by relying on this high-visibility OSS library.

[banginji]

Yeah it does the same as what the get_file was doing (reading the contents and decoding it) before I implemented the graphql endpoint and reverted back the get_file to reading in chunks

We could get the contents and use the https://pypi.org/project/base64io/ you pointed out instead of using decoded_content() but yeah we can use this library as far as I saw for our use case

[banginji]

Incorporated the package in #54