Bump Azure.Identity from 1.13.1 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
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

Directory.Packages.props

@@ -9,7 +9,7 @@
     <PackageVersion Include="Ardalis.SmartEnum" Version="8.2.0" />
     <PackageVersion Include="Ardalis.Specification" Version="9.2.0" />
     <PackageVersion Include="Ardalis.Specification.EntityFrameworkCore" Version="9.2.0" />
-    <PackageVersion Include="Azure.Identity" Version="1.13.1" />
+    <PackageVersion Include="Azure.Identity" Version="1.15.0" />
     <PackageVersion Include="coverlet.collector" Version="6.0.4" />
     <PackageVersion Include="FastEndpoints" Version="6.2.0" />
     <PackageVersion Include="FastEndpoints.ApiExplorer" Version="2.2.0" />