Update dependencies from https://github.com/microsoft/testfx build 20250927.1

On relative base path root
Microsoft.Testing.Platform From Version 1.9.0-preview.25475.1 -> To Version 1.9.0-preview.25477.1
MSTest From Version 3.11.0-preview.25475.1 -> To Version 3.11.0-preview.25477.1

Author: dotnet-maestro[bot]

eng/Version.Details.props

@@ -140,8 +140,8 @@ This file should be imported by eng/Versions.props
     <!-- dotnet/core-setup dependencies -->
     <NETStandardLibraryRefPackageVersion>2.1.0</NETStandardLibraryRefPackageVersion>
     <!-- microsoft/testfx dependencies -->
-    <MicrosoftTestingPlatformPackageVersion>1.9.0-preview.25476.4</MicrosoftTestingPlatformPackageVersion>
-    <MSTestPackageVersion>3.11.0-preview.25476.4</MSTestPackageVersion>
+    <MicrosoftTestingPlatformPackageVersion>1.9.0-preview.25477.1</MicrosoftTestingPlatformPackageVersion>
+    <MSTestPackageVersion>3.11.0-preview.25477.1</MSTestPackageVersion>
   </PropertyGroup>
   <!--Property group for alternate package version names-->
   <PropertyGroup>

eng/Version.Details.xml

@@ -553,13 +553,13 @@
       <Uri>https://github.com/dotnet/dotnet</Uri>
       <Sha>a0ca1b9be44fcdffcc9f6a0d6a1f3dca62d1b3f3</Sha>
     </Dependency>
-    <Dependency Name="Microsoft.Testing.Platform" Version="1.9.0-preview.25476.4">
+    <Dependency Name="Microsoft.Testing.Platform" Version="1.9.0-preview.25477.1">
       <Uri>https://github.com/microsoft/testfx</Uri>
-      <Sha>85fcd434ec43f7a51c9f3d405294a5b9516b54c4</Sha>
+      <Sha>103d51afb7b4852b4002356ff8b20e213850f412</Sha>
     </Dependency>
-    <Dependency Name="MSTest" Version="3.11.0-preview.25476.4">
+    <Dependency Name="MSTest" Version="3.11.0-preview.25477.1">
       <Uri>https://github.com/microsoft/testfx</Uri>
-      <Sha>85fcd434ec43f7a51c9f3d405294a5b9516b54c4</Sha>
+      <Sha>103d51afb7b4852b4002356ff8b20e213850f412</Sha>
     </Dependency>
     <Dependency Name="Microsoft.Extensions.Configuration.Ini" Version="10.0.0-rc.1.25474.105">
       <Uri>https://github.com/dotnet/dotnet</Uri>