Update vulnerabilities/pipelines/v2_improvers/compute_advisory_todo.py

Co-authored-by: Keshav Priyadarshi <git@keshav.space>

Author: TG1999

vulnerabilities/pipelines/v2_improvers/compute_advisory_todo.py

@@ -258,8 +258,8 @@ def check_conflicting_affected_and_fixed_by_packages_for_alias(
             if fixed_version_range := impacted.fixed_vers:
                 matrix[affected_purl]["fixed"][advisory_id].add(fixed_version_range)
 
-            if impacted.affecting_vers:
-                matrix[affected_purl]["affected"][advisory_id].add(str(impacted.affecting_vers))
+            if affecting_version_range := impacted.affecting_vers:
+                matrix[affected_purl]["affected"][advisory_id].add(affecting_version_range)
 
     has_conflicting_affected_packages = False
     has_conflicting_fixed_package = False