Bump the dotnet group with 1 update (#54051)

Bumps Azure.Identity.Broker from 1.6.0 to 1.7.0

---
updated-dependencies:
- dependency-name: Azure.Identity.Broker
  dependency-version: 1.7.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: dotnet
...

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Author: dependabot[bot]

docs/azure/sdk/snippets/authentication/Directory.Packages.props

@@ -9,7 +9,7 @@
     <PackageVersion Include="Microsoft.Extensions.AI.OpenAI" Version="9.3.0-preview.1.25114.11" />
     <PackageVersion Include="Microsoft.Extensions.Azure" Version="1.14.0" />
     <PackageVersion Include="Azure.Identity" Version="1.21.0" />
-    <PackageVersion Include="Azure.Identity.Broker" Version="1.6.0" />
+    <PackageVersion Include="Azure.Identity.Broker" Version="1.7.0" />
     <PackageVersion Include="Azure.Security.KeyVault.Secrets" Version="4.11.0" />
     <PackageVersion Include="Azure.Storage.Blobs" Version="12.28.0" />
     <!-- ASP.NET Core packages -->