fix: Ollama maximum output token field (#2973)

Author: shaohuzhang1

apps/setting/models_provider/impl/ollama_model_provider/credential/llm.py

@@ -25,7 +25,7 @@ class OllamaLLMModelParams(BaseForm):
                                     _step=0.01,
                                     precision=2)
 
-    max_tokens = forms.SliderField(
+    num_predict = forms.SliderField(
         TooltipLabel(_('Output the maximum Tokens'),
                      _('Specify the maximum number of tokens that the model can generate')),
         required=True, default_value=1024,