chore: update openapi-generator to 7.8.0 for dotnet

[sbward]

Update open-apigenerator to 7.8.0 for dotnet to fix ApiClient issue in Blazor WASM environments

Related Issue or Design Document

Updates open-apigenerator to 7.8.0 to include a fix for Blazor WebAssembly where API calls trigger a System.PlatformNotSupportedException due to invoking a blocking wait from a WASM environment. I believe this bug could be triggered by making any call from any Ory Client class in a Blazor WebAssembly environment. As such Ory Client is unusable in Blazor WASM without this fix.

Checklist

• I have read the contributing guidelines and signed the CLA.
• I have referenced an issue containing the design document if my change introduces a new feature.
• I have read the security policy.
• I confirm that this pull request does not address a security vulnerability.
  If this pull request addresses a security vulnerability,
  I confirm that I got approval (please contact [email protected]) from the maintainers to push the changes.
• I have added tests that prove my fix is effective or that my feature works.
• I have added the necessary documentation within the code base (if appropriate).

Further comments

[jonas-jonas]

I think this makes sense! Thank you.

AFAIK, the currently generated dotnet SDK is broken in some places, and this should contain a few important fixes!