fixing the config file

tools/python/model_validation/validation_config.json

@@ -1,10 +1,7 @@
 {
     "models": [
-        "Qwen/Qwen2-0.5B"
     ],
     "inputs": [
-        "Provide a detailed analysis of the causes and consequences of the French Revolution, including key events, figures, and social changes.",
-        "Explain the process of photosynthesis in plants, detailing the chemical reactions involved, the role of chlorophyll, and the importance of sunlight"
     ],
     "max_length": 512,
     "min_length": 0,
@@ -14,5 +11,6 @@
     "temperature": 1.0,
     "repetition_penalty": 1.0,
     "verbose": false,
-    "timings": false
+    "output_directory": "",
+    "cache_directory": ""
 }