Merged PR 54003: Merge public rc2

Update versions of maui from public rc2

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#### AI description  (iteration 1)
#### PR Classification
This pull request updates version references and package configurations to merge the public rc2 release.

#### PR Summary
The PR updates package sources and version settings to support the new public rc2 release.
- `NuGet.config`: Changed the Maui package source key from darc-pub-dotnet-maui-69d28e51 to darc-pub-dotnet-maui-7c4f71ad.
- `eng/Versions.props`: Updated MicrosoftMauiPreviousDotNetReleasedVersion from 9.0.110 to 9.0.111.
<!-- GitOpsUserAgent=GitOps.Apps.Server.pullrequestcopilot -->

Author: rmarinho

NuGet.config

@@ -26,7 +26,7 @@
     <add key="dotnet-eng" value="https://pkgs.dev.azure.com/dnceng/public/_packaging/dotnet-eng/nuget/v3/index.json" protocolVersion="3" />
     <add key="dotnet-tools" value="https://pkgs.dev.azure.com/dnceng/public/_packaging/dotnet-tools/nuget/v3/index.json" protocolVersion="3" />
     <!-- Added manually for .NET 9 MAUI -->
-    <add key="darc-pub-dotnet-maui-69d28e51" value="https://pkgs.dev.azure.com/dnceng/public/_packaging/darc-pub-dotnet-maui-69d28e51/nuget/v3/index.json" />
+    <add key="darc-pub-dotnet-maui-7c4f71ad" value="https://pkgs.dev.azure.com/dnceng/public/_packaging/darc-pub-dotnet-maui-7c4f71ad/nuget/v3/index.json" />
     <!-- Added manually for dotnet/runtime 8.0.21 -->
     <add key="darc-pub-dotnet-runtime-c0390586" value="https://pkgs.dev.azure.com/dnceng/internal/_packaging/8.0.415-servicing.25476.4-shipping/nuget/v3/index.json" />
     <!-- Added manually for dotnet/runtime 9.0.10 -->

eng/Versions.props

@@ -27,7 +27,7 @@
   </PropertyGroup>
   <PropertyGroup>
     <!-- Current previous .NET SDK major version's stable release of MAUI packages -->
-    <MicrosoftMauiPreviousDotNetReleasedVersion>9.0.110</MicrosoftMauiPreviousDotNetReleasedVersion>
+    <MicrosoftMauiPreviousDotNetReleasedVersion>9.0.111</MicrosoftMauiPreviousDotNetReleasedVersion>
     <!-- dotnet/sdk -->
     <MicrosoftNETSdkPackageVersion>10.0.100-rc.2.25502.107</MicrosoftNETSdkPackageVersion>
     <MicrosoftDotnetSdkInternalPackageVersion>$(MicrosoftNETSdkPackageVersion)</MicrosoftDotnetSdkInternalPackageVersion>