Bump Microsoft.AspNetCore.OpenApi from 9.0.7 to 9.0.9 (#32)

---
updated-dependencies:
- dependency-name: Microsoft.AspNetCore.OpenApi
  dependency-version: 9.0.9
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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samples/WebApi/WebApi.csproj

@@ -8,7 +8,7 @@
 
     <ItemGroup>
         <PackageReference Include="FunQL" Version="1.1.0" />
-        <PackageReference Include="Microsoft.AspNetCore.OpenApi" Version="9.0.7"/>
+        <PackageReference Include="Microsoft.AspNetCore.OpenApi" Version="9.0.9"/>
         <PackageReference Include="Microsoft.EntityFrameworkCore.InMemory" Version="9.0.9" />
         <PackageReference Include="NodaTime" Version="3.2.2" />
         <PackageReference Include="NodaTime.Serialization.SystemTextJson" Version="1.3.0" />