Add the ability to download python from a private repository

[GolanTrevize10]

Description:
I want to be able to download python versions from a private repository instead of github.com.

Justification:
My workflows will run faster and no problems with rate limits

Are you willing to submit a PR?
Yes

[gowridurgad]

Hi @GolanTrevize10 ,
Thank you for creating this feature request. We will investigate it and get back to you as soon as we have some feedback.