Sync eng/common directory with azure-sdk-tools for PR 3860#3871

scbedd merged 2 commits intomainAzure/azure-sdk-for-cpp:mainfrom

sync-eng/common-hotfix/update-proxy-dev-cert-3860Azure/azure-sdk-for-cpp:sync-eng/common-hotfix/update-proxy-dev-cert-3860Copy head branch name to clipboard