Fix typing errors in core/model_runtime (#26462)

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api/pyrightconfig.json

@@ -7,7 +7,6 @@
     "core/rag",
     "extensions",
     "core/ops",
-    "core/model_runtime",
     "core/workflow/nodes",
     "core/app/app_config/easy_ui_based_app/dataset"
   ],
@@ -37,4 +36,4 @@
   "reportAttributeAccessIssue": "hint",
   "pythonVersion": "3.11",
   "pythonPlatform": "All"
-}
+}