Update model name

app.py

@@ -74,7 +74,7 @@ if __name__ == "__main__":
 
     print(f"astro args: {gws.args}")
 
-    model_path = os.getenv("model", "universeTBD/AstroLLaVA_v1")
+    model_path = os.getenv("model", "universeTBD/AstroLLaVA_v2")
     bits = int(os.getenv("bits", 4))
     concurrency_count = int(os.getenv("concurrency_count", 5))