Bump the dotnet group with 2 updates (#49407)

Bumps Microsoft.Extensions.Hosting from 10.0.0-preview.6.25358.103 to 10.0.0-rc.2.25502.107
Bumps ModelContextProtocol from 0.4.0-preview.1 to 0.4.0-preview.3

---
updated-dependencies:
- dependency-name: Microsoft.Extensions.Hosting
  dependency-version: 10.0.0-rc.2.25502.107
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: dotnet
- dependency-name: ModelContextProtocol
  dependency-version: 0.4.0-preview.3
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: dotnet
...

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Author: dependabot[bot]

docs/ai/quickstarts/snippets/mcp-server/SampleMcpServer.csproj

@@ -33,8 +33,8 @@
   </ItemGroup>
 
   <ItemGroup>
-    <PackageReference Include="Microsoft.Extensions.Hosting" Version="10.0.0-preview.6.25358.103" />
-    <PackageReference Include="ModelContextProtocol" Version="0.4.0-preview.1" />
+    <PackageReference Include="Microsoft.Extensions.Hosting" Version="10.0.0-rc.2.25502.107" />
+    <PackageReference Include="ModelContextProtocol" Version="0.4.0-preview.3" />
   </ItemGroup>
 
 </Project>