Remove updated_at from updateData in inviteService

Removed updated_at field from updateData in inviteService.

Author: akshit1003

src/services/inviteService.ts

@@ -725,8 +725,8 @@ export const updateUserRsvp = async (
 
     // In the update operation, replace accommodation with new fields:
     const updateData: any = {
-      rsvp: data.rsvp,
-      updated_at: new Date(),
+      rsvp: data.rsvp
+      // updated_at: new Date(),
     };
 
     if (data.food !== undefined) updateData.food = data.food;
@@ -1136,4 +1136,4 @@ export const getEventGuestList = async (eventId: string, userId: string, filters
       error: error instanceof Error ? error.message : 'Failed to get guest list'
     };
   }
-};
+};