Bump the dotnet group with 1 update (#48719)

Bumps Microsoft.Extensions.Azure from 1.12.0 to 1.13.0

---
updated-dependencies:
- dependency-name: Microsoft.Extensions.Azure
  dependency-version: 1.13.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: dotnet
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

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

@@ -7,7 +7,7 @@
     <PackageVersion Include="Azure.AI.OpenAI" Version="2.1.0" />
     <PackageVersion Include="Microsoft.Extensions.AI" Version="9.3.0-preview.1.25114.11" />
     <PackageVersion Include="Microsoft.Extensions.AI.OpenAI" Version="9.3.0-preview.1.25114.11" />
-    <PackageVersion Include="Microsoft.Extensions.Azure" Version="1.12.0" />
+    <PackageVersion Include="Microsoft.Extensions.Azure" Version="1.13.0" />
     <PackageVersion Include="Azure.Identity" Version="1.16.0" />
     <PackageVersion Include="Azure.Identity.Broker" Version="1.3.0" />
     <PackageVersion Include="Azure.Security.KeyVault.Secrets" Version="4.8.0" />