[CI] Try Moving Github Object Into Loop
Currently the metrics container is crashing reasonably often with
incomplete read/connection broken errors. Try moving the creation of the
Github Object into the main loop to see if recreating the object that
maybe handles some connection state fixes the issue.
Reviewers: Keenuts, lnihlen
Reviewed By: lnihlen
Pull Request: https://github.com/llvm/llvm-project/pull/127276
