add a missing include (#11624)

Summary:
Pull Request resolved: https://github.com/facebook/rocksdb/pull/11624

<queue> must be included to use std::queue.

Reviewed By: pdillinger

Differential Revision: D47562433

fbshipit-source-id: 7c5b19fd9e411694c782dfc0dff0231d4f92ef24

util/single_thread_executor.h

@@ -8,6 +8,7 @@
 
 #if USE_COROUTINES
 #include <atomic>
+#include <queue>
 
 #include "folly/CPortability.h"
 #include "folly/CppAttributes.h"