Revert "chore: update iam token endpoint (#862)"#864

Chavalowrider wants to merge 1 commit intotwilio:maintwilio/twilio-python:mainfrom

Chavalowrider:revert-862-iam-token-endpointChavalowrider/twilio-python:revert-862-iam-token-endpointCopy head branch name to clipboard