Run tests multi-threaded

Author: olapiv

.github/workflows/build_test_push.yaml

@@ -107,4 +107,4 @@ jobs:
         run: cat $LOCAL_RONDIS_LOG
 
       - name: Run Redis benchmark
-        run: docker exec -i $CONTAINER_NAME bash -c "redis-benchmark -t get,set -r 100 -P 10"
+        run: docker exec -i $CONTAINER_NAME bash -c "redis-benchmark -t get,set -r 100 -P 10 --threads 3"