Bump Azure.Identity from 1.14.2 to 1.15.0

---
updated-dependencies:
- dependency-name: Azure.Identity
  dependency-version: 1.15.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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Author: dependabot[bot]

04-PracticalSamples/src/src/McpSample.Chat/McpSample.BlazorChat.csproj

@@ -10,7 +10,7 @@
 
 	<ItemGroup>
 		<PackageReference Include="Azure.AI.OpenAI" Version="2.2.0-beta.5" />
-		<PackageReference Include="Azure.Identity" Version="1.14.2" />
+		<PackageReference Include="Azure.Identity" Version="1.15.0" />
 		<PackageReference Include="Microsoft.Extensions.AI" Version="9.5.0" />
 		<PackageReference Include="Microsoft.Extensions.AI.AzureAIInference" Version="9.5.0-preview.1.25265.7" />
 		<PackageReference Include="Microsoft.Extensions.AI.Ollama" Version="9.5.0-preview.1.25265.7" />