Features:

1) Add error handling with logger and custom error message for holiday API requests;

Fixes:
(none);

Extra:
1) Replace direct API response raising with try-except block for better robustness and logging;

core/tasks.py

@@ -168,11 +168,15 @@ def process_promotions() -> tuple[bool, str]:
 
     for day_offset in range(4):
         checked_date = date.today() + timedelta(days=day_offset)
+        try:
             response = requests.get(
                 f"https://holidays.abstractapi.com/v1/?api_key={config.ABSTRACT_API_KEY}&country=GB&"
                 f"month={checked_date.month}&day={checked_date.day}"
             )
             response.raise_for_status()
+        except Exception as e:
+            logger.warning(f"Couldn't fetch holiday data for {checked_date}: {e!s}")
+            return False, f"Couldn't fetch holiday data for {checked_date}: {e!s}"
         holidays = response.json()
         if holidays:
             holiday_data = holidays[0]