Backport fix for AttributeError: 'Comment' object has no attribute 'gen_cil'

[maage]

Upstream has:

SELinuxProject/selinux@b6910aa

And in
policycoreutils-python-utils-3.7-6.fc41.noarch

if you have same audit violations, you will get:

$ sudo audit2allow -al -e
Traceback (most recent call last):
  File "/usr/bin/audit2allow", line 399, in <module>
    app.main()
    ~~~~~~~~^^
  File "/usr/bin/audit2allow", line 387, in main
    self.__output()
    ~~~~~~~~~~~~~^^
  File "/usr/bin/audit2allow", line 353, in __output
    g.add_access(self.__avs)
    ~~~~~~~~~~~~^^^^^^^^^^^^
  File "/usr/lib/python3.13/site-packages/sepolgen/policygen.py", line 255, in add_access
    self.__add_av_rule(av)
    ~~~~~~~~~~~~~~~~~~^^^^
  File "/usr/lib/python3.13/site-packages/sepolgen/policygen.py", line 182, in __add_av_rule
    rule.comment = str(refpolicy.Comment(explain_access(av, verbosity=self.explain)))
                   ~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3.13/site-packages/sepolgen/refpolicy.py", line 1242, in __str__
    return self.to_string()
           ~~~~~~~~~~~~~~^^
  File "/usr/lib/python3.13/site-packages/sepolgen/refpolicy.py", line 1229, in to_string
    if self.gen_cil:
       ^^^^^^^^^^^^
AttributeError: 'Comment' object has no attribute 'gen_cil'

Please backport the commit from upstream.