Merge #40539

40539: storage: don't use caller's context in {Maybe,Add}Async r=nvanbenschoten a=tbg

The callers context often cancels immediately after the operation is
enqueued, and that doesn't mean that we don't want to go ahead and
queue the replica.

Was seeing lots of messages about this in the logs.

Release note: None

Co-authored-by: Tobias Schottdorf <tobias.schottdorf@gmail.com>

pkg/storage/queue.go

@@ -511,7 +511,7 @@ func (bq *baseQueue) Async(
 		log.InfofDepth(ctx, 2, opName)
 	}
 	opName += " (" + bq.name + ")"
-	if err := bq.store.stopper.RunLimitedAsyncTask(ctx, opName, bq.addOrMaybeAddSem, wait,
+	if err := bq.store.stopper.RunLimitedAsyncTask(context.Background(), opName, bq.addOrMaybeAddSem, wait,
 		func(ctx context.Context) {
 			fn(ctx, baseQueueHelper{bq})
 		}); err != nil && bq.addLogN.ShouldLog() {