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

@@ -8,7 +8,7 @@
     <PackageVersion Include="EfLocalDb" Version="20.2.1" />
     <PackageVersion Include="EntityFramework" Version="6.5.1" />
     <PackageVersion Include="MarkdownSnippets.MsBuild" Version="28.0.0-beta.2" />
-    <PackageVersion Include="Microsoft.AspNetCore.Mvc.Testing" Version="9.0.8" />
+    <PackageVersion Include="Microsoft.AspNetCore.Mvc.Testing" Version="9.0.9" />
     <PackageVersion Include="Microsoft.EntityFrameworkCore" Version="9.0.8" />
     <PackageVersion Include="Microsoft.EntityFrameworkCore.InMemory" Version="9.0.8" />
     <PackageVersion Include="Microsoft.EntityFrameworkCore.Relational" Version="9.0.8" />