Use find_all_cve from utils in libreoffice importer

Replace local re.findall CVE regex with the shared find_all_cve
utility. Normalise to uppercase before dedup to handle IGNORECASE
matches from both href and link text.

Signed-off-by: Anmol Vats <anmolvats2003@gmail.com>

Author: NucleiAv

vulnerabilities/pipelines/v2_importers/libreoffice_importer.py

@@ -9,7 +9,6 @@
 
 import json
 import logging
-import re
 from typing import Iterable
 
 import dateparser
@@ -20,6 +19,7 @@
 from vulnerabilities.importer import VulnerabilitySeverity
 from vulnerabilities.pipelines import VulnerableCodeBaseImporterPipelineV2
 from vulnerabilities.severity_systems import SCORING_SYSTEMS
+from vulnerabilities.utils import find_all_cve
 from vulnerabilities.utils import get_cwe_id
 
 logger = logging.getLogger(__name__)
@@ -75,7 +75,7 @@ def collect_advisories(self) -> Iterable[AdvisoryDataV2]:
 
 def parse_cve_ids(html: str) -> list:
     """Return deduplicated CVE IDs from the LibreOffice advisories listing page."""
-    return list(dict.fromkeys(re.findall(r"CVE-\d{4}-\d+", html)))
+    return list(dict.fromkeys(cve.upper() for cve in find_all_cve(html)))
 
 
 def parse_cve_advisory(data: dict, cve_id: str):