Update app.py

app.py

@@ -169,7 +169,7 @@ def get_holidays(year: int = None, app_language: str = "EN", data_language: str
     }
 
     try:
-        response = requests.get("https://api.exaweb.in:3004/api/panchang/holiday", params=params, headers)
+        response = requests.get("https://api.exaweb.in:3004/api/panchang/holiday", params=params, headers=headers)
         response.raise_for_status()
         data = response.json()