Bump Microsoft.AspNetCore.Mvc.Testing from 8.0.15 to 8.0.22

---
updated-dependencies:
- dependency-name: Microsoft.AspNetCore.Mvc.Testing
  dependency-version: 8.0.22
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

Directory.Packages.props

@@ -26,7 +26,7 @@
     <PackageVersion Include="Microsoft.AspNetCore.Components.WebAssembly" Version="8.0.15" />
     <PackageVersion Include="Microsoft.AspNetCore.Components.WebAssembly.DevServer" Version="9.0.4" PrivateAssets="all" />
     <PackageVersion Include="Microsoft.AspNetCore.Components.WebAssembly.Server" Version="8.0.15" />
-    <PackageVersion Include="Microsoft.AspNetCore.Mvc.Testing" Version="8.0.15" />
+    <PackageVersion Include="Microsoft.AspNetCore.Mvc.Testing" Version="8.0.22" />
     <PackageVersion Include="Microsoft.AspNetCore.SignalR.Client" Version="9.0.4" />
     <PackageVersion Include="Microsoft.NET.Test.Sdk" Version="17.13.0" />
     <PackageVersion Include="Moq" Version="4.20.72" />