update target version to newest one that includes .NET body bugfix as well as renames the proxy back to azure.sdk.tools.testproxy (Azure#19936)

Co-authored-by: scbedd <45376673+scbedd@users.noreply.github.com>

Author: azure-sdk

eng/common/testproxy/target_version.txt

@@ -1 +1 @@
-1.0.0-dev.20221111.1
+1.0.0-dev.20230201.10