Update warning for old pytorch version. (#11319)

Versions below 2.4 are no longer supported. We will not break support on purpose but will not fix it if we do.

Author: comfyanonymous

comfy/utils.py

@@ -53,7 +53,7 @@ def scalar(*args, **kwargs):
     ALWAYS_SAFE_LOAD = True
     logging.info("Checkpoint files will always be loaded safely.")
 else:
-    logging.info("Warning, you are using an old pytorch version and some ckpt/pt files might be loaded unsafely. Upgrading to 2.4 or above is recommended.")
+    logging.warning("Warning, you are using an old pytorch version and some ckpt/pt files might be loaded unsafely. Upgrading to 2.4 or above is recommended as older versions of pytorch are no longer supported.")
 
 def load_torch_file(ckpt, safe_load=False, device=None, return_metadata=False):
     if device is None: