Updates OpenApi package version

Updates the Microsoft.AspNetCore.OpenApi package to the latest preview version.
This ensures compatibility with the latest features and fixes in the OpenAPI specification.

Author: niemyjski

Issues/Issues.csproj

@@ -8,7 +8,7 @@
 
     <ItemGroup>
         <PackageReference Include="Foundatio.Repositories.Elasticsearch" Version="7.17.15" />
-        <PackageReference Include="Microsoft.AspNetCore.OpenApi" Version="10.0.0-preview.4.25258.110" />
+        <PackageReference Include="Microsoft.AspNetCore.OpenApi" Version="10.0.0-preview.6.25358.103" />
         <PackageReference Include="Newtonsoft.Json" Version="13.0.3" />
     </ItemGroup>