Update Chrome Binaries Test Region AWS setup - Confirm the AWS CLI is logged into account by running . If not, ask the user to log in. - Export AWS credentials into the shell by running . The Lambda client checks for and does not pick up SSO or Identity Center credentials on its own. - From , run to publish all 5 layers: fonts, chromium, emoji-apple, emoji-google, cjk. - The and the command must run in the same shell invocation because the env vars do not persist across shell calls. - Verify the output prints a and for each of the 5 layers and a final JSON dump with the published regions popu…