GRPC Server: Add gRPC server service (#47849)

Co-authored-by: Todd Treece <todd.treece@grafana.com>
Co-authored-by: Ryan McKinley <ryantxu@gmail.com>

packages/grafana-data/src/types/featureToggles.gen.ts

@@ -64,6 +64,7 @@ export interface FeatureToggles {
   internationalization?: boolean;
   topnav?: boolean;
   customBranding?: boolean;
+  grpcServer?: boolean;
   traceqlEditor?: boolean;
   redshiftAsyncQueryDataSupport?: boolean;
   athenaAsyncQueryDataSupport?: boolean;