Bump Microsoft.EntityFrameworkCore.Design from 6.0.8 to 6.0.9

Bumps [Microsoft.EntityFrameworkCore.Design](https://github.com/dotnet/efcore) from 6.0.8 to 6.0.9.
- [Release notes](https://github.com/dotnet/efcore/releases)
- [Commits](dotnet/efcore@v6.0.8...v6.0.9)

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

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

src/HealthChecks.UI/HealthChecks.UI.csproj

@@ -19,7 +19,7 @@
     <FrameworkReference Include="Microsoft.AspNetCore.App" />
     <PackageReference Include="Microsoft.Extensions.Http" Version="6.0.0" />
     <PackageReference Include="Microsoft.EntityFrameworkCore" Version="6.0.9" />
-    <PackageReference Include="Microsoft.EntityFrameworkCore.Design" Version="6.0.8" />
+    <PackageReference Include="Microsoft.EntityFrameworkCore.Design" Version="6.0.9" />
     <PackageReference Include="Microsoft.EntityFrameworkCore.Sqlite" Version="6.0.8" />
     <PackageReference Include="Microsoft.EntityFrameworkCore.Sqlite.Design" Version="2.0.0-preview1-final" NoWarn="NU5104" />
     <PackageReference Include="Newtonsoft.Json" Version="13.0.1" />