[FEATURE] Bump openapi-generator version

[Al33t]

Is there an existing issue for this?

• I have searched the existing issues

Issue / Request Related to a Problem?

openapi-generator version 7.24.0 improves proxy support (OpenAPITools/openapi-generator#24082).

Solution

Patch .openapi-generator/VERSION and scripts/generate.sh

Additional Context

This should ultimately lead to resolving OpenCTI-Platform/connectors#6916