add t4 to leaderboard

.github/workflows/update_llm_perf_cuda_pytorch.yaml

@@ -1,6 +1,9 @@
 name: Update LLM Perf Benchmarks - CUDA PyTorch
 
-on: push
+on: workflow_dispatch
+  # push:
+  #   branches:
+  #     - "add-t4-for-llm-perf-leaderboard"
   # For debugging purpose the workflow is triggered manually
   # schedule:
   #   - cron: "0 */6 * * *"