feat: add shutdown with timeout for traces (open-telemetry#2956)

Co-authored-by: Lalit Kumar Bhasin <lalit_fin@yahoo.com>
Co-authored-by: Cijo Thomas <cijo.thomas@gmail.com>

Author: 3 people

traces.rs

@@ -8,7 +8,6 @@
     Hardware: AMD EPYC 7763 64-Core Processor - 2.44 GHz, 16vCPUs,
     ~10.6 M /sec
 */
-
 use lazy_static::lazy_static;
 use opentelemetry::{
     trace::{Span, SpanBuilder, Tracer, TracerProvider},
@@ -18,6 +17,7 @@ use opentelemetry_sdk::{
     error::OTelSdkResult,
     trace::{self as sdktrace, SpanData, SpanProcessor},
 };
+use std::time::Duration;
 
 mod throughput;
 
@@ -45,7 +45,7 @@ impl SpanProcessor for NoOpSpanProcessor {
         Ok(())
     }
 
-    fn shutdown(&self) -> OTelSdkResult {
+    fn shutdown_with_timeout(&self, _timeout: Duration) -> OTelSdkResult {
         Ok(())
     }
 }