Bump Microsoft.VisualStudio.Web.CodeGeneration.Design

Bumps [Microsoft.VisualStudio.Web.CodeGeneration.Design](https://github.com/dotnet/Scaffolding) from 7.0.2 to 7.0.4.
- [Release notes](https://github.com/dotnet/Scaffolding/releases)
- [Commits](https://github.com/dotnet/Scaffolding/commits)

---
updated-dependencies:
- dependency-name: Microsoft.VisualStudio.Web.CodeGeneration.Design
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Directory.Packages.props

@@ -29,7 +29,7 @@
     <PackageVersion Include="Microsoft.AspNetCore.Mvc" Version="2.2.0" />
     <PackageVersion Include="Microsoft.Extensions.Identity.Core" Version="7.0.2" />
     <PackageVersion Include="Microsoft.Extensions.Logging.Configuration" Version="7.0.0" />
-    <PackageVersion Include="Microsoft.VisualStudio.Web.CodeGeneration.Design" Version="7.0.2" />
+    <PackageVersion Include="Microsoft.VisualStudio.Web.CodeGeneration.Design" Version="7.0.4" />
     <PackageVersion Include="Microsoft.Web.LibraryManager.Build" Version="2.1.175" />
     <PackageVersion Include="Microsoft.EntityFrameworkCore.InMemory" Version="7.0.2" />
     <PackageVersion Include="Microsoft.EntityFrameworkCore.SqlServer" Version="7.0.2" />