Bump Microsoft.AspNetCore.OpenApi from 8.0.1 to 8.0.6 (#263)

Bumps [Microsoft.AspNetCore.OpenApi](https://github.com/dotnet/aspnetcore) from 8.0.1 to 8.0.6.
- [Release notes](https://github.com/dotnet/aspnetcore/releases)
- [Changelog](https://github.com/dotnet/aspnetcore/blob/main/docs/ReleasePlanning.md)
- [Commits](dotnet/aspnetcore@v8.0.1...v8.0.6)

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

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

samples/Directory.Packages.props

@@ -4,7 +4,7 @@
     <CentralPackageVersionOverrideEnabled>false</CentralPackageVersionOverrideEnabled>
   </PropertyGroup>
   <ItemGroup>
-    <PackageVersion Include="Microsoft.AspNetCore.OpenApi" Version="8.0.1" />
+    <PackageVersion Include="Microsoft.AspNetCore.OpenApi" Version="8.0.6" />
     <PackageVersion Include="Microsoft.AspNetCore.WebUtilities" Version="8.0.6" />
     <PackageVersion Include="Microsoft.EntityFrameworkCore" Version="8.0.4" />
     <PackageVersion Include="Microsoft.EntityFrameworkCore.SqlServer" Version="8.0.4" />