Bump Microsoft.AspNetCore.Mvc.Testing from 9.0.8 to 9.0.9

---
updated-dependencies:
- dependency-name: Microsoft.AspNetCore.Mvc.Testing
  dependency-version: 9.0.9
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

src/Directory.Packages.props

@@ -13,7 +13,7 @@
     <PackageVersion Include="GraphQL.SystemTextJson" Version="8.5.0" />
     <PackageVersion Include="MarkdownSnippets.MsBuild" Version="28.0.0-beta.2" />
     <PackageVersion Include="Microsoft.AspNetCore.Http" Version="2.3.0" />
-    <PackageVersion Include="Microsoft.AspNetCore.Mvc.Testing" Version="9.0.8" />
+    <PackageVersion Include="Microsoft.AspNetCore.Mvc.Testing" Version="9.0.9" />
     <PackageVersion Include="Microsoft.Data.SqlClient" Version="6.1.1" />
     <PackageVersion Include="Microsoft.EntityFrameworkCore" Version="9.0.8" />
     <PackageVersion Include="Microsoft.EntityFrameworkCore.SqlServer" Version="9.0.8" />