@GrpcGlobalServerInterceptor
    @Order(InterceptorOrder.ORDER_TRACING_METRICS + 1)
    public ServerInterceptor globalObservationGrpcServerInterceptorConfigurer(final ObservationRegistry observations) {
        return new ObservationGrpcServerInterceptor(observations);
    }
Configures a global server interceptor that applies micrometer tracing logic to the requests.

@param observations The observation registry.
@return The tracing server interceptor bean.
grpc-server-spring-boot-starter/src/main/java/net/devh/boot/grpc/server/autoconfigure/GrpcServerMicrometerTraceAutoConfiguration.java