implemented isGreen functionality to verify whether a commit SHA is promote-able (#79061)
Relates to #76700
**Overview:** I implemented the isGreen method in `print_latest_commits.py` which takes in a commit SHA and returns if the commit is promote-able to viable/strict. I use a regex for checks that must be successful, and a short allow-list for the checks that can either be success or skipped. If a commit SHA is not promote-able, the method will output a short error message specifying which workflow name (ex: pull, android-tests) that had unpromote-able check results.
**Example Outputs:**
Example of a promote-able SHA:
This matches the current viable/strict branch as this SHA is part of viable/strict on the HUD.
Example of an unpromote-able SHA:
**Test Plan:** Compare commit SHAs with those found on the viable/strict branch on the HUD. I have also looked manually at the check results for commits on the HUD in the master branch to see if they are green and promoteable to viable/strict. Since I did not use the original specifications for green-ness that were mentioned in #76700, I will modify my test cases in the next PR.
Pull Request resolved: https://github.com/pytorch/pytorch/pull/79061
Approved by: https://github.com/seemethere
