gRPC: Create automated test suites

[CarlosLopezDeLara]

Unit, integration, concurrency, and load testing of the RPC server implementation. Tests must ensure robust validation of correct behavior, performance benchmarks, error handling, and dynamic reload functionality.

[github-actions]

This issue is stale because it has been open 30 days with no activity. Remove stale label or comment or this will be closed in 120 days.

[github-actions]

This issue is stale because it has been open 30 days with no activity. Remove stale label or comment or this will be closed in 120 days.