fix(api): drop the unused type-ignores on the P5 response constructions (CI #167 mypy)

apps/ai-service/ai_service/api/marketplace.py

@@ -517,7 +517,7 @@ async def mine_application(
         )
     return MineApplicationResponse(
         application_id=application.id,
-        status=application.status,  # type: ignore[arg-type]
+        status=application.status,
     )
 
 
@@ -564,7 +564,7 @@ async def learner_application_status(
             id=application.id,
             posting_id=application.posting_id,
             learner_id=application.learner_id,
-            status=application.status,  # type: ignore[arg-type]
+            status=application.status,
             created_at=application.created_at,
         ),
         events=events,