Sync eng/common directory with azure-sdk-tools for PR 9016 (Azure#46070)

* Update TestProxy version to 1.0.0-dev.20240919.1 for net6->net8 update

* Update props to set proxy version to 1.0.0-dev.20240919.1

* Update proxy path in TestFramework projects to net8.0

---------

Co-authored-by: James Suplizio <[email protected]>

Author: azure-sdk

eng/Packages.Data.props

@@ -392,7 +392,7 @@
   </ItemGroup>
 
   <PropertyGroup>
-    <TestProxyVersion>1.0.0-dev.20240823.1</TestProxyVersion>
+    <TestProxyVersion>1.0.0-dev.20240919.1</TestProxyVersion>
   </PropertyGroup>
 
 </Project>

eng/common/testproxy/target_version.txt

@@ -1 +1 @@
-1.0.0-dev.20240823.1
+1.0.0-dev.20240919.1

sdk/core/Azure.Core.TestFramework/src/Azure.Core.TestFramework.csproj

@@ -47,7 +47,7 @@
   <ItemGroup>
     <AssemblyAttribute Include="System.Reflection.AssemblyMetadataAttribute">
       <_Parameter1>TestProxyPath</_Parameter1>
-      <_Parameter2>$(NuGetPackageRoot)\azure.sdk.tools.testproxy\$(TestProxyVersion)\tools\net6.0\any\Azure.Sdk.Tools.TestProxy.dll</_Parameter2>
+      <_Parameter2>$(NuGetPackageRoot)\azure.sdk.tools.testproxy\$(TestProxyVersion)\tools\net8.0\any\Azure.Sdk.Tools.TestProxy.dll</_Parameter2>
     </AssemblyAttribute>
   </ItemGroup>
 </Project>

sdk/openai/tools/TestFramework/src/OpenAI.TestFramework.csproj

@@ -34,7 +34,7 @@
   <ItemGroup>
     <AssemblyAttribute Include="System.Reflection.AssemblyMetadataAttribute">
       <_Parameter1>TestProxyPath</_Parameter1>
-      <_Parameter2>$(NuGetPackageRoot)\azure.sdk.tools.testproxy\$(TestProxyVersion)\tools\net6.0\any\Azure.Sdk.Tools.TestProxy.dll</_Parameter2>
+      <_Parameter2>$(NuGetPackageRoot)\azure.sdk.tools.testproxy\$(TestProxyVersion)\tools\net8.0\any\Azure.Sdk.Tools.TestProxy.dll</_Parameter2>
     </AssemblyAttribute>
   </ItemGroup>