Update dependencies from https://github.com/dotnet/extensions build 20230821.8 (#50258)

[release/8.0] Update dependencies from dotnet/extensions

Author: dotnet-maestro[bot]

eng/Version.Details.xml

@@ -393,9 +393,9 @@
       <Uri>https://github.com/dotnet/arcade</Uri>
       <Sha>385129cbc980a515ddee2fa56f6b16f3183ed9bc</Sha>
     </Dependency>
-    <Dependency Name="Microsoft.Extensions.Telemetry.Testing" Version="8.0.0-rc.2.23417.1">
+    <Dependency Name="Microsoft.Extensions.Telemetry.Testing" Version="8.0.0-rc.2.23421.8">
       <Uri>https://github.com/dotnet/extensions</Uri>
-      <Sha>6f38a71521d48c518445e39dc643a43d8599ce23</Sha>
+      <Sha>30dc2c0878042e9b29c32daf74a55c8c06ddc598</Sha>
     </Dependency>
     <Dependency Name="NuGet.Frameworks" Version="6.2.4">
       <Uri>https://github.com/nuget/nuget.client</Uri>

eng/Versions.props

@@ -137,7 +137,7 @@
     <SystemIOHashingVersion>8.0.0-rc.2.23418.14</SystemIOHashingVersion>
     <SystemRuntimeCachingVersion>8.0.0-rc.2.23418.14</SystemRuntimeCachingVersion>
     <!-- Packages from dotnet/extensions -->
-    <MicrosoftExtensionsTelemetryTestingVersion>8.0.0-rc.2.23417.1</MicrosoftExtensionsTelemetryTestingVersion>
+    <MicrosoftExtensionsTelemetryTestingVersion>8.0.0-rc.2.23421.8</MicrosoftExtensionsTelemetryTestingVersion>
     <!-- Packages from dotnet/efcore -->
     <dotnetefVersion>8.0.0-rc.2.23421.10</dotnetefVersion>
     <MicrosoftEntityFrameworkCoreInMemoryVersion>8.0.0-rc.2.23421.10</MicrosoftEntityFrameworkCoreInMemoryVersion>