chore(contracts): update Viper OpenAPI pin

[github-actions]

Scheduled drift check detected a change in the live Viper OpenAPI spec.

Source: https://viper-xi.vercel.app/api/openapi.json

oasdiff exit code: 0 (1 = breaking changes for assets-processIntegrationCreate)

oasdiff output:

No changes detected
::notice::Non-breaking Viper OpenAPI changes:
No changes detected
No breaking Viper OpenAPI changes detected

Automated by contracts.yml drift job.

---

Summary by cubic

Updated the Viper OpenAPI contract to match the latest live spec. oasdiff reports no breaking changes; this only refreshes the pin and updates uv.lock.

• Dependencies
  • Regenerated uv.lock as part of the contract update; no runtime impact.

^{Written for commit f456208. Summary will update on new commits.}