Update quantize.py

Fix typo

Author: mikekgfb

torchchat/utils/quantize.py

@@ -945,4 +945,4 @@ def quantized_model(self) -> nn.Module:
         print("Unable to load torchao mps ops library.")
 
 except Exception as e:
-    print("Unabled to import torchao experimental quant_api with error: ", e)
+    print("Unable to import torchao experimental quant_api with error: ", e)