Too Long; Didn't Read
Heroku created the ability to push a Git repos from master to main instead of master. The move was easy and fast, and no more master branches in my Git repo or Heroku builds. Have any questions? Let me know in the comments below! You can deploy from main using git push heroku main or push master from main to main to deploy your app from Heroku's main repository or use the latest version of your app to test your app's ability to use Heroku build.