feat: update grpc stubs

[eliobischof]

Updates gRPC stubs from ZITADEL main branch.

Definition of Ready

• [x] I am happy with the code
• [x] Short description of the feature/issue is added in the pr description
• [ ] PR is linked to the corresponding user story
• [x] Acceptance criteria are met
• [x] All open todos and follow ups are defined in a new ticket and justified
• [x] Deviations from the acceptance criteria and design are agreed with the PO and documented.
• [x] No debug or dead code
• [x] My code has no repetitions
• [x] Critical parts are tested automatically
• [x] Where possible E2E tests are implemented
• [x] Documentation/examples are up-to-date
• [x] All non-functional requirements are met
• [x] Functionality of the acceptance criteria is checked manually on the dev system.

[eliobischof]

Closing, as #207 is merged