Use iterator in vulnerability_status improver

Signed-off-by: Keshav Priyadarshi <[email protected]>

Author: keshav-space

vulnerabilities/improvers/vulnerability_status.py

@@ -10,7 +10,6 @@
 from typing import Iterable
 from urllib.parse import urljoin
 
-from django.db.models import Q
 from django.db.models.query import QuerySet
 
 from vulnerabilities.importer import AdvisoryData
@@ -37,7 +36,9 @@ class VulnerabilityStatusImprover(Improver):
 
     @property
     def interesting_advisories(self) -> QuerySet:
-        return Advisory.objects.filter(Q(created_by=NVDImporterPipeline.pipeline_id)).paginated()
+        return Advisory.objects.filter(created_by=NVDImporterPipeline.pipeline_id).iterator(
+            chunk_size=5000
+        )
 
     def get_inferences(self, advisory_data: AdvisoryData) -> Iterable[Inference]:
         """