Run v1 benchmark and integrate with PyTorch OSS benchmark database (#13068)

Signed-off-by: Huy Do <huydhn@gmail.com>

.buildkite/nightly-benchmarks/scripts/run-performance-benchmarks.sh

@@ -345,6 +345,11 @@ main() {
   check_gpus
   check_hf_token
 
+  # Set to v1 to run v1 benchmark
+  if [[ "${ENGINE_VERSION:-v0}" == "v1" ]]; then
+    export VLLM_USE_V1=1
+  fi
+
   # dependencies
   (which wget && which curl) || (apt-get update && apt-get install -y wget curl)
   (which jq) || (apt-get update && apt-get -y install jq)