Sync eng/common directory with azure-sdk-tools for PR 4169 (#23273)

* pin newest version of proxy

Co-authored-by: scbedd <[email protected]>

Author: azure-sdk

eng/common/testproxy/target_version.txt

@@ -1 +1 @@
-1.0.0-dev.20220810.2
+1.0.0-dev.20220921.2