Bump dependency Microsoft.OpenApi to 1.6.25 (#422)

| datasource | package           | from   | to     |
| ---------- | ----------------- | ------ | ------ |
| nuget      | Microsoft.OpenApi | 1.6.24 | 1.6.25 |

Signed-off-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>
Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

src/TodoApp/TodoApp.csproj

@@ -17,7 +17,7 @@
     <PackageReference Include="Microsoft.AspNetCore.OpenApi" Version="9.0.8" />
     <PackageReference Include="Microsoft.EntityFrameworkCore.Sqlite" Version="9.0.8" />
     <PackageReference Include="Microsoft.Extensions.ApiDescription.Server" Version="9.0.8" PrivateAssets="all" />
-    <PackageReference Include="Microsoft.OpenApi" Version="1.6.24" />
+    <PackageReference Include="Microsoft.OpenApi" Version="1.6.25" />
     <PackageReference Include="Microsoft.TypeScript.MSBuild" Version="5.9.2" PrivateAssets="all" />
     <PackageReference Include="NSwag.AspNetCore" Version="14.5.0" />
     <PackageReference Include="Swashbuckle.AspNetCore" Version="9.0.3" />