Sync eng/common directory with azure-sdk-tools for PR 1953 (#23661)
Sync eng/common directory with azure-sdk-tools for PR 1953 (#23661)

* Add random elements to default base name

* Fix principal

* tab

Co-authored-by: JoshLove-msft <e37f5dd36338887dcec6be47dca99afa7f719ca6@users.noreply.github.com>
AsrOneSdk/azure-sdk-for-net,AsrOneSdk/azure-sdk-for-net,AsrOneSdk/azure-sdk-for-net,AsrOneSdk/azure-sdk-for-net