[main] Update dependencies from dotnet/xharness (#23692)

This pull request updates the following dependencies

## From https://github.com/dotnet/xharness

- **Subscription**: [02e03784-16b3-4ced-b02a-3715797fc7da](https://maestro.dot.net/subscriptions?search=02e03784-16b3-4ced-b02a-3715797fc7da)
- **Build**: [20250827.1](https://dev.azure.com/dnceng/internal/_build/results?buildId=2781121)
- **Date Produced**: August 27, 2025 3:29:32 PM UTC
- **Commit**: [dbb478b6aafa222529ae95be344a1b91485c4adf](dotnet/xharness@dbb478b)
- **Branch**: [main](https://github.com/dotnet/xharness/tree/main)

- **Updates**:
  - From [10.0.0-prerelease.25412.1 to 10.0.0-prerelease.25427.1][1]
    - Microsoft.DotNet.XHarness.iOS.Shared

[1]: dotnet/xharness@fe850ca...dbb478b

Author: dotnet-maestro[bot]

eng/Version.Details.props

@@ -39,7 +39,7 @@ This file should be imported by eng/Versions.props
     <!-- dotnet/templating dependencies -->
     <MicrosoftTemplateEngineTasksPackageVersion>7.0.100-alpha.1.21601.1</MicrosoftTemplateEngineTasksPackageVersion>
     <!-- dotnet/xharness dependencies -->
-    <MicrosoftDotNetXHarnessiOSSharedPackageVersion>10.0.0-prerelease.25412.1</MicrosoftDotNetXHarnessiOSSharedPackageVersion>
+    <MicrosoftDotNetXHarnessiOSSharedPackageVersion>10.0.0-prerelease.25427.1</MicrosoftDotNetXHarnessiOSSharedPackageVersion>
   </PropertyGroup>
   <!--Property group for alternate package version names-->
   <PropertyGroup>

eng/Version.Details.xml

@@ -95,9 +95,9 @@
       <Uri>https://github.com/dotnet/templating</Uri>
       <Sha />
     </Dependency>
-    <Dependency Name="Microsoft.DotNet.XHarness.iOS.Shared" Version="10.0.0-prerelease.25412.1">
+    <Dependency Name="Microsoft.DotNet.XHarness.iOS.Shared" Version="10.0.0-prerelease.25427.1">
       <Uri>https://github.com/dotnet/xharness</Uri>
-      <Sha>fe850ca677efa9ed62009b929f55ff59d5e24c0e</Sha>
+      <Sha>dbb478b6aafa222529ae95be344a1b91485c4adf</Sha>
     </Dependency>
     <Dependency Name="Microsoft.DotNet.Arcade.Sdk" Version="9.0.0-beta.25415.3">
       <Uri>https://github.com/dotnet/arcade</Uri>