chore: 🧹 update requirements and change default weights file in ultralytics_example.py for count people example

examples/count_people_in_zone/requirements.txt

@@ -1,5 +1,5 @@
 gdown
-inference==0.9.17
-supervision>=0.20.0
+inference
+supervision
 tqdm
-ultralytics<=8.3.40
+ultralytics

examples/count_people_in_zone/ultralytics_example.py

@@ -134,7 +134,7 @@ if __name__ == "__main__":
     )
     parser.add_argument(
         "--source_weights_path",
-        default="yolov8x.pt",
+        default="yolo11x.pt",
         help="Path to the source weights file",
         type=str,
     )