Fixed hardcoded pattern to allow v4 urls

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: aKlimau

pulp_python/app/management/commands/repair-python-metadata.py

@@ -59,7 +59,7 @@ def href_prn_list_handler(value):
     """Common list parsing for a string of hrefs/prns."""
     r = re.compile(
         rf"""
-        (?:{settings.API_ROOT}(?:[-_a-zA-Z0-9]+/)?api/v3/repositories/python/python/[-a-f0-9]+/)
+        (?:{settings.API_ROOT}(?:[-_a-zA-Z0-9]+/)?api/v[34]/repositories/python/python/[-a-f0-9]+/)
         |(?:prn:python\.pythonrepository:[-a-f0-9]+)
         """,
         re.VERBOSE,