Add typing to empty list of operations

src/khoj/database/migrations/0082_merge_20250121_1842.py

@@ -1,4 +1,5 @@
 # Generated by Django 5.0.10 on 2025-01-21 18:42
+from typing import List
 
 from django.db import migrations
 
@@ -9,4 +10,4 @@ class Migration(migrations.Migration):
         ("database", "0081_merge_20250120_1633"),
     ]
 
-    operations = []
+    operations: List[str] = []