Yolov3 implementation on jetracer using jetson nano

[SivaRamaKrishnaNV]

Dear @binhan.thai,
I see NVIDIA Jetson Nano Deployment - Ultralytics YOLOv8 Docs instructions for yolov5 using jetpack 4.6. Did you check it?

Also see Installation of Ultralytics and Yolov5 over Jetson Nano board (Jetpack 4.6.4).) if it helps.