Bump Microsoft.AspNetCore.Mvc.Testing from 8.0.10 to 8.0.11 in /src (#810)

Author: dependabot[bot]

src/Directory.Packages.props

@@ -8,7 +8,7 @@
     <PackageVersion Include="EfLocalDb" Version="19.2.1" />
     <PackageVersion Include="EntityFramework" Version="6.5.1" />
     <PackageVersion Include="MarkdownSnippets.MsBuild" Version="27.0.2" />
-    <PackageVersion Include="Microsoft.AspNetCore.Mvc.Testing" Version="8.0.10" />
+    <PackageVersion Include="Microsoft.AspNetCore.Mvc.Testing" Version="8.0.11" />
     <PackageVersion Include="Microsoft.EntityFrameworkCore" Version="8.0.10" />
     <PackageVersion Include="Microsoft.EntityFrameworkCore.InMemory" Version="8.0.10" />
     <PackageVersion Include="Microsoft.EntityFrameworkCore.Relational" Version="8.0.10" />