Bump Microsoft.AspNetCore.Mvc.Core (#44353)

Bumps the dotnet group in /docs/csharp/whats-new/tutorials/snippets/primary-constructors with 1 update: [Microsoft.AspNetCore.Mvc.Core](https://github.com/dotnet/aspnetcore).


Updates `Microsoft.AspNetCore.Mvc.Core` from 2.2.5 to 2.3.0
- [Release notes](https://github.com/dotnet/aspnetcore/releases)
- [Changelog](https://github.com/dotnet/aspnetcore/blob/main/docs/ReleasePlanning.md)
- [Commits](https://github.com/dotnet/aspnetcore/commits)

---
updated-dependencies:
- dependency-name: Microsoft.AspNetCore.Mvc.Core
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: dotnet
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

docs/csharp/whats-new/tutorials/snippets/primary-constructors/primary-constructors.csproj

@@ -9,7 +9,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="Microsoft.AspNetCore.Mvc.Core" Version="2.2.5" />
+    <PackageReference Include="Microsoft.AspNetCore.Mvc.Core" Version="2.3.0" />
   </ItemGroup>
 
 </Project>