refactor(typing): update handler signatures to use Dict and Any for improved type hinting

steps/advoware_cal_sync/calendar_sync_cron_step.py

@@ -9,6 +9,7 @@ from pathlib import Path
 sys.path.insert(0, str(Path(__file__).parent))
 from calendar_sync_utils import log_operation
 
+from typing import Dict, Any
 from motia import cron, FlowContext
 
 
@@ -23,7 +24,7 @@ config = {
 }
 
 
-async def handler(input_data: dict, ctx: FlowContext):
+async def handler(input_data: Dict[str, Any], ctx: FlowContext) -> None:
     """Cron handler that triggers the calendar sync cascade."""
     try:
         log_operation('info', "Calendar Sync Cron: Starting to emit sync-all event", context=ctx)
@@ -37,14 +38,6 @@ async def handler(input_data: dict, ctx: FlowContext):
         })
 
         log_operation('info', "Calendar Sync Cron: Emitted sync-all event", context=ctx)
-        return {
-            'status': 'completed',
-            'triggered_by': 'cron'
-        }
 
     except Exception as e:
         log_operation('error', f"Fehler beim Cron-Job: {e}", context=ctx)
-        return {
-            'status': 'error',
-            'error': str(e)
-        }