base: allow symlinks outside of the archive

The default behavior was changed by python 3.14, so we pass the argument
to revert to the previous one.

Author: no92

xbstrap/base.py

@@ -3191,7 +3191,7 @@ def pull_archive(cfg, subject):
         os.mkdir(subject.prefix_dir)
         with tarfile.open(subject.archive_file, "r:gz") as tar:
             for info in tar:
-                tar.extract(info, subject.prefix_dir)
+                tar.extract(info, subject.prefix_dir, filter="fully_trusted")
     else:
         # TODO: Also support packages here.
         raise GenericError("Unexpected subject for pull-archive")